Evolution Essay Questions

Evolution And Evolution Of Evolution

Most things in science all eventually lead back to one thing, evolution. Evolution has been an interesting topic since mankind could wrap its mind around the concept. Whether one believes in it or not, it is hard to deny the cold hard facts that back up how every being has changed from its original form of life. From plants to humans, everything has adapted and evolved to be able to adjust to climate changes, habitats disappearing, and new predators. All it takes is for one mutated gene to get a foothold and aid in the survival of a species for the evolu–tion to begin. Although many will try and disagree,evolution has played a large role in every living beings survival. Even with evolution being such a key part of science, it did not quite start out that way. "Pre–Darwinian science, heavily influenced by theology, held that all organisms were created simultaneously by God and that each distinct life–form remained fixed and unchanging from the moment of its creation" (Audesirk). This idea lasted for many years, 427–347 B.C., as great philosophers preached of this grand idea without anyone challenging their words (Audesirk). It gave a simple and easy answer to the tough question of how everything came to be, which was enough for most people. It wasn 't until 1707–1788 when George Louis LeClerc suggested that maybe the original sets of life had changed over time (Audesirk). This claim was bold and un–heard of before, and many viewed it as blasphemy. "However, by the 19th Get

Introduction

Do you believe in the theory of evolution? There are many people who believe evolution is how humans came to be in today's world. Charles Darwin was the first to publish work on the theory in 1859, concluding it is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Over the years scientists have began trying to prove this theory is real. The theory has two main points, all life is connected and related to each other and the diversity is a product of modifications of populations by natural selection. Modern scientists have gone even further to branch off of the theory to make more points of the theory such as natural selection, origin of species, and modern understanding....show more content... In today's society there are a strong number of individuals who strongly believe it is true. The theory is untrue from the majority's point of view. This is because there are no hard facts to prove we have all evolved from the same specimen. The only type of evolution is how animals adapt to an environment over time, but to say we all came from the same cell is just not provable. To see that a lot of people believe in a loosely supported and the theory was created by man when there was little to no religion. There's more proof in the religion of Christianity than evolution because of religious sites and the places that are spoken of in the bible are actual cities. There's nothing but the words of a man that came from his imagination. Charles Darwin made a lot of valid points but he did not know what modern people know today. Darwin did not know about DNA and the specifics of each species. If Darwin had all the details of today's scientists, he would have not believed in evolution.

Conclusion

The theory of evolution is a debatable topic. It can go either way depending on the person, but the simple fact is that there is no proof to support the theory. Scientists have tried to find any realism in the theory but it is just too far fetched to have any concrete evidence. It is a personal opinion in whether someone believes in evolution or not but it is almost more

Evolution And Evolution Of Evolution

Evolution

Evolution, a change in the genetic makeup of a subgroup, or population, of a species (Nowicki 10). Every living thing in the world is capable of evolving into something. Cells evolve to perform different tasks and to become stronger. Charles Darwin is the founder of evolution, he realized that species change over time to ensure survival. The future of evolution can not be predicted. Everything in our universe starts out as a single celled organism. All life traces back to three billion years ago, therefor all species have had a long time to evolve into what it is now.

Species evolve to ensure survival, to get a better sense of smell and eyesight. Some bugs have evolved to have a hard exoskeleton that can stand a lot of pressure and won 't kill them. A duck has evolved to produce oils on its feathers that make them waterproof and keeps them dry and warm in very cold water. They have also evolved to have webbed feet that makes it easy to swim through the water. The average household dog was once a wild untamed animal. Over time the process of evolution has changed it into mans best friend. Some have evolved into great hunting dogs, others just take naps all day. Their sense of smell, hearing, and sight are amazing but they didn 't get like that from the beginning, they evolved.

The importance of evolution helps us solve problems that impact our lives. An example of this is in the field of medicine, to stay ahead of pathogenic diseases we must understand the

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RJ McKoy

Evolution Assignment

Feb.24.2015

Evolution Paper

In the year 1859, Charles Darwin developed the theory of evolution and since then, scientists globally have been studying and trying to figure out exactly how we arrived on this planet. Evolution is the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

Life started about 3.8 billion years ago when the earth was formed as comets delivered water and energy to the earth. Then simple single cells formed and genes combined through sexual variation. Two cells merged together during sex. Genes were combined and a third cell was created as a sort of mutation when genes were duplicated. Next a few cells were so...show more content... Scientists then found that light sensitive cells dominated the population through natural selection. 300 billion years ago, those cells became sea organisms and one was able to breath air thus letting air travel to a new organ and creating the opportunity for land organisms such as lizard–like arthropods. They roamed on land and eventually adapted to the surrounding heat of the sun and rough ground. Sexual reproduction occurred when the arthropods could no longer fertilize eggs through the tough outer shells so instead fertilized the eggs inside of the female's body. Brains evolve with new information and jaw bones become larger, capable of crushing heftier food. 250 million years ago molten rock covers earth for a ВЅ billion years and 95% of the species die out. 30 million years ago furry creatures evolve and adapt to the environment due to survival of the fittest, especially when the dinosaurs evolved from a small reptile that survived the mass extinction. Mice –like mammals came from the organism's running and hiding from the dinosaurs and other mammals survived the extinction of the dinosaurs due to the bugs that ate the them and recycled life. Fruits came up on the trees and hence

Evolution

Evolution is a complex process by which the characteristics of living organisms change over many generations as traits are passed from one generation to the next. Many scientists agree on that concept. They have been trying to develop this theory over hundreds of years to make it reasonable and beliveable to people. But is evolution the reason that humans are on earth?

People that are not quite religious and have little faith in God believe in evolution. Those who strongly stand by their beliefs supporting evolution, in my opinion, think they know enough about science and biology and all the complexities of the cell and the human being that they forgot who actually created all this. In the Bible, the Quran and most if...show more content...

This is prohibited genetically since all of the information for the development of an organism has already been encoded in the DNA of its parent. Variation to organisms must remain within its basic kind...evolutionists have tried to explain thatnatural selection happened in conjunction with mutations to the genetic code. This could not produce evolution, however, since mutations do not create new genetic potential, they just alter what is already there."3 Now genetic alteration, or mutation is being taken place on animals like pigs and mice to try to have human DNA in their cells. The chances of this taking place successfully is again very low.

Some evolutionists argue that anti–evolutionists' only sources are either religous or weak scientific facts. The second law of thermodynamics is broadly accepted by many scientists and states that, "...anything which is organized , tends with time, to become disorganized. Any physical system left to itself will decay, or, lose energy and organization within the system...In other words, this law says that the increase of information required for a life form to evolve could not happen as this increase in information by itself violates the law."4 This disorganization is also called entropy.

1. http://str.org/free/reflections

"Measurements of the sediment deposited each year as a result of the Nile River's overflow shows that

Essay on Evolution

There are many mechanisms that lead to evolutionary change. One of the most important mechanism in evolution is natural selection which is the differential success in the reproduction of different phenotypes resulting from the interaction of organisms with their environment. Natural selection occurs when a environment makes a individual adapt to that certain environment by variations that arise by mutation and genetic recombination. Also it favors certain traits in a individual than other traits so that these favored traits will be presented in the next generation. Another mechanism of evolution is genetic drift. Genetic drift is a random change in a small gene pool due to sampling errors in propagation of alleles or...show more content...

Some bacteria had genes that coded for enzymes that specifically destroyed certain antibiotics such as ampicillin. From this incident, scientists were able to deduce that natural selection helped the bacteria to inherit the genes for antibiotic resistance. Scientists have also been able to use biochemistry as a source of evidence. The comparison of genes of two species is the most direct measure of common inheritance from shared ancestors. Using DNA–DNA hybridization, whole genomes can be compared by measuring the extent of hydrogen bonding between single–stranded DNA obtained from two sources. The similarity of the two genes can be seen by how tightly the DNA of one specie bonds to the DNA of the other specie. Many taxonomic debates have been answered using this method such as whether flamingos are more closely related to storks or geese. This method compared the DNA of the flamingo to be more closely related to the DNA of the stork than the geese. The only disadvantage of this method is that it does not give precise information about the matchup in specific nucleotide sequences of the DNA which restriction mapping does. This technique uses restriction enzymes that recognizes a specific sequence of a few nucleotides and cleaves DNA wherever such sequences are found in the genome. Then the DNA fragments are separated by electrophoresis and compared to

Two Arguments On The Theory Of Evolution

Evolutionism is supported by most people. There are two arguments on the theory of evolution. The first argument is that evolution is caused by natural selection, such as the birds of the Galapagos Islands. Because of different food made of different mouth type of bird, after the environment changed, the food source changed, causing the birds died, this is the result of natural selection.

The second argument is that all creatures are genetically related. In the anatomy, although whales' appearance just like fish, but the other part is more similar with the mammals, and in the early embryonic development process also like mammals, Genetics also found that the closest DNA sequence of whale was hippopotamus, probably they had a common ancestor

The Future of Human Evolution

Evolution, the science of how populations of living organisms change over time in response to their environment, is the central unifying theme in biology today. Evolution was first explored in its semi–modern form in Charles Darwin 's 1859 book, Origin of Species by means of Natural Selection. In this book, Darwin laid out a strong argument for evolution. He postulated that all species have a common ancestor from which they are descended. As populations of species moved into new habitats and new parts of the world, they faced different environmental conditions. Over time, these populations accumulated modifications, or adaptations, that allowed them and their offspring to survive better in their...show more content...

The question is can humans evolve (physically), that is through changes of some sort to the general human gene pool, enough to be considered a different species sometime in the future. The answer to this is tricky. The answer is "yes" if there is no human intervention and "not likely" (or atleast controlled) if there is human intervention. The more interesting answer is the latter. The first answer deserves some mention. Through the subtraction or addition (that is through chance changes of some sort) of alleles (different forms of a characteristic gene) from the overall gene pool until homo sapiens are no longer is feasible. One might ask how and were this is occurring. The answer is human genes are changing all the time through radiation and spontaneous mutations (the latter more rapidly no than ever since the human population is now larger than ever) and one can see these changes to the overall gene pool in the disappearance of certain human tribes within parts of Africa and South America.. These tribes unfortunately take exclusive alleles with them. What about Natural Selection in present human culture. Some peoples are growing faster than others, for example–Chinese faster than any other in the present world, thus the large Chinese population.

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Evolution And Evolution Of Evolution

What is the theory of evolution? Many people who don't understand science or Biology

don't know how to answer this question. "Evolution is the process of biological change by which descendants come to differ from their ancestors." In our society today, there is many conflicts that exist between creationism which is the belief that a higher power created the Earth and made living things and the theory of evolution. Some people are debating whether to teach evolution in schools because the subject is very touchy to others. In other areas of the world, there is wars against religion and evolution. I am on both sides. I don't really care about either because they both sound pretty good to me. Evolution makes sense to me. I like the history of evolution. It's so cool to see how different species have evolved throughout time.

#1) Chapter 10.1–10.5, p. 280–301 (Early Scientist's observations, Darwin's Observations, Theory of Natural Selection, Evidence of Evolution, Evolutionary Biology Today)

There are many scientists and people that study evolution and it's wonders. The most

well known was Charles Darwin who traveled to the Galapagos Islands and observed

evolutionary changes in different species or "a group of organisms that are very similar to each other that they can reproduce and have children", but there are four major ones that we should learn about in biology class. The first guy was Carolus Linnaeus was a Swedish Botanist who developed a

Evidence For Evolution Essay

evolution is a biology thing you don't have to believe in it but it happened so dill with it.i'm going to tell you what evolution is based on what i've searched up on it. During and since Darwin's time, people have been looking for and studying evidence in nature that teaches them more about evolution. were used by Darwin to develop his theory of natural selection, and are still used today. Others, such asDNA testing, were not available in Darwin's time, but are used by scientists today to learn more about evolution. Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms all others, such as DNA testing, were not available in Darwin's time, but are used by scientists today to learn...show more content...

Thus, universal common ancestry entails the transformation of one species into another and, consequently, macroevolutionary history and processes involving the origin of higher taxa. Because it is so well supported scientifically, common descent is often called the by biologists. For these reasons, proponents of special creation are especially hostile to the macroevolutionary foundation of the biological sciences. This article dirThis article directly addresses the scientific evidence in favor of common descent and microevolution.evolution, the overarching concept that unifies the biological sciences, in fact embraces a plurality of theories and hypotheses. In evolutionary debates one is apt to hear evolution roughly parceled between the terms "microevolution" and "macroevolution". Microevolution, or change beneath the species level, may be thought of as relatively small scale change in the functional and genetic constituencies of populations of organisms. That this occurs and has been observed is generally undisputed by critics of evolution. What is vigorously challenged,

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Evolution and Diversity


Evolution and DiversityThe foundation for the theory of evolution was laid by Charles Darwin (Rose, n.d.). He developed hypotheses about natural selection which helped scientists develop the theory. Evolution is a theory and not a hypothesis because evolution has been proven by vast amounts of scientific data, research, and testing. The definition of a hypothesis is an educated explanation that needs to be researched and tested but has not yet been proven (Earman, 1984). There has been no scientific evidence to disprove the theory of evolution. The fossil record is evidence of evolution. Fossils are often fingerprints of evolution. They help scientists track how species evolved...show more content... Many die before they are born or hatched depending on species, while many others don't survive infancy and ultimately into their reproductive years. A portion of those that reach reproductive age will never reproduce due to sterility or other factors. This is a part of thenatural selection process. It is often referred to as the, "survival of the fittest" (Frederic, 2011). It is hard to truly estimate what fraction of offspring will survive to reproduction. There are always obstacles to survival for an organism. Climate, food, habitat, and illness are just a few factors which affect natural selection. Ultimately we know that some traits can increase survival rates for individuals such as their color. We know from Darwin's research that a certain beak length was favorable in finches but that was also dependent on yearly weather (Petren, 2005). Offspring that possess favorable traits are more capable of surviving into adulthood and thus reproducing. We know from genetics that there is an increased likelihood that their offspring would also possess that desirable trait. The population of individuals possessing the trait would increase as more individuals possessing the trait survived to reproductive years, and fewer without the trait did not. Natural selection can help prevent a species from going extinct if they were to face adverse conditions that

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Where we come from is a question as old as mankind itself. There are countless numbers of religions, each with their own twist on the origins of earth and mankind, but one of the most highly visible debates would be creationism vs. evolution. Depending on where your beliefs lie, the Earth has been around somewhere in the neighborhood of 6,000 years to 4.5 billion years. One would tend to believe that this vast difference in time would make it impossible to have 2 "theories" that are so widely accepted. However this debate gives you just that. Each argument has its variations, however it comes down to either God created the Earth and all things in it as they are now or that life today has evolved from a...show more content...

Under the same idea, the "Old Earth" train of thought is that the "days" mentioned in Genesis were actually up to many millions of years each. This is one of many "theories" that justifies the actual age of the Earth being around 4.5 billion years old. The third view states that the story of creation contained in Genesis is not a literal or even a chronological account of happenings. It is instead a guide promoting a six–day workweek with the seventh day a day of worship to God. The last view is much like the second, in that it considers the "days" to be God's workdays, which may or may not be equal to an Earth calendar day. Each day represents a period of time that God performed a major task. Each view has the same underlying concept that God created everything, and the way it is today, it the way it was when it was created.

Webster's Dictionary defines evolution as a theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modification in successive generations. Like creation, evolution is not immune from differing of opinions. Evolution is split between two frames of though, naturalistic and theistic.

Naturalistic evolution is pretty much cut and dry. It simply states that life started as a single one–celled organism. The universe was created 14 billion years ago, and the Earth was Get more content

Evolution by definition is a theory that describes a change in one or more heritable characteristics of a population from generation to generation. As a theory, evolution is not a proven fact. Instead evolution is simply a theory that has been supported by evidence. While evolution has not been proven correct, many people still believe in this theory–or so we thought. Several people still do not believe in the theory of evolution for various reasons such as believing that god created all living organisms and these organisms have stayed the same, while others are afraid of evolution. Before getting into the debate of evolution, we must first understand what it means to be correct in science. Foremost, not many things in science are correct, things like theories are just highly supported by evidence. Once evidence is found that contradicts the theory or idea, the theory is then eliminated or altered to fit the evidence. For instance, evolution was first defined as "descent with modification or changes in characteristics of populations over time" (Biology, 362). However the current definition accounts for changes in allele frequencies over time since new evidence has been found that shows alleles change...show more content...

For instance, fossils found in sedimentary rock help provide evidence such as determining evolutionary change in organisms. However, some people think that fossils are placed by the devil in order to get humans to doubt god (Martin and Dawson). After all, "Gallup poll found 45 percent of the population [was] in agreement that 'God created humans pretty much in their present form at one time within the last 10,000 years'" (Sampson, 217). In other worlds, 45 percent of the population believes that organisms have not changed since god put them here on Earth. Thus, the evidence that fossils provide mean very little to people who do not believe in

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Argumentative Essay On Evolution

Madison Wenig

Mr. Kellerman

Honors Biology 2

19 May 2017

Evolution

There always has been a controversy whether evolution really did happen or not. Many evolutionists, philosophers and biologists have presented sufficient evidence that evolution is true. Yet there is still debate about this contentious topic. With the facts and findings offossil records of earlier species, ideas of initial theorists, and our own genetics and DNA, evolution can be hard to prove wrong. Evolution is not just a change over time, but that all life on Earth shares a common ancestor. This process is occurring in our lives right now. What exactly is evolution? Evolution is "the process through which the characteristics of organisms change over successive generations, by means of genetic variation". (What is evolution) Simply, descent with modification.Charles Darwin was the first person with the acceptable explanation of evolution. Although his theory gave forth too many tremendous advances, he did not build this theory on his own. He learned and built off earlier theorists, like Jean–Baptiste Lamarck, "who indorsed linear evolution". (evolution) As well as Aristotle, a Greek philosopher, with his concept of Scala Nature. These early theorists served as a foundation for Charles Darwin's theory. Although Darwin's theory was important, a greater attribution to evolution was founded. That is the uncovering of fossils. Fossils are significant to the evolution because they show how life on Earth was

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Evolution Hypothesis

The purpose of this experiment was to test if evolution was occurring, and if so what type. Evolution is when either the genotype frequency or the allele frequency changes overtime within a population. In other words, it is when the genotypes of a population change. The change can be due to a number of things, but the two this experiment tested were genetic drift and natural selection. If natural selection were to occur, the allele frequency would be changing consistently, but one allele would constantly be greater than the other. If genetic drift was to occur, we would end up with many more of one type than the other, and the change would not be consistent. Evolution within a population is very significant, and has many real–world applications....show more content...

We know that there is some type of genetic drift in each population, but we needed to do deeper research to see which had a stronger influence. We came up with three hypotheses and predicted what the results would be for each one. The first hypothesis was that evolution would occur. The results would show allele frequencies had changed for that hypothesis to be proved correct. If there was no change in the frequencies after the colonies formed, evolution would not have occurred. The second hypothesis, assuming that evolution occurred, was that genetic drift would be the resulting cause. If this was true, the allele frequencies wouldn't be equal. Our third, and final, hypothesis, assuming that evolution occurred, would be that the cause of it was natural selection. However, it is unlikely that both would occur, because the p–value would prove one or the other correct, not both forms of evolution Methods: We began our experiment by taking a small population of yeast from a larger population. We assumed that the end result would be a 50:50 ratio of red vs white yeast. We put the yeast on agar and after a week we checked to see what colonies had grown. We were then able to count how many colonies of each genotype had formed. After seeing how many colonies had formed, we were able to find the chi–square value, which is how we figured out which hypotheses we could

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Evolution It has always been a mystery of how life on Earth started. Although we may not be able to find out exactly how life originated, we can find out how life has changed over time through the theory of evolution. Evolution is the process by which all living organisms come through a long history of changes shaped by physical and chemical processes still taking place. There are debates between whether the theory of evolution is truly scientific. The argument stems from why evolution is considered a "theory." To many, a theory is simply defined as someone's opinion. In biology, a theory is "an explanation of some natural phenomenon with well supported evidence from experiments or observations" (Reed Wicander, 2012).

Discovery of Evolution

Between 1831 and 1836, Charles Darwin embarked on a five–year voyage after graduating from Cambridge University with a degree in theology. Darwin made a visit to the Galapagos Islands, where he made observations which changed his ideas on present–day species. The idea the people of that time before his discovery held on to the concept of the fixity of species, where all species were created in their current forms with little to no changes at all. After observing fossils of past mammals and the 13 species of finches living on the island, Darwin realized that these animals came from a common ancestor. After making such observations, he was convinced that "all living organisms derived from ancestors that lived in the past with some Get more content

Biological evolution is the name for the changes in gene frequency in a population of a species from generation to generation. Evolution offers explanation to why species genetically change over years and the diversity of life on Earth. Although it is generally accepted by the scientific community,Charles Darwin's theory of evolution has been studied and debated for several decades. In 1859, Darwin published On The Origin of Species, which introduced the idea of evolutionary thought which he supported with evidence of one type of evolutionary mechanism, natural selection. Some of the main mechanisms of evolution are natural selection, mutation, and genetic drift. The idea that all life on Earth shares a common ancestor has been around for...show more content...

Over time the beak would become longer and those birds would survive. The next mechanism, genetic drift, happens by chance. For example, a bug that is either red or green. If a large portion of the red bug happens to get stepped on, the gene frequency for this species is now changed. Mutation is another evolutionary mechanism that happens by chance. Mutation is when the genetic material of an organism is altered. An example of this is albinism which has altered the genes of several different animals. Evolution has been debated for many years. Most scientists assume evolution to be true, but it is not officially proven. Evolution is known as "fact and theory," because it is a fact that organisms have changed over time, but the mechanism that changes those organisms is uncertain. One of the major debates regarding evolution is the belief in creationism. Creationists believe that the Universe and organisms on Earth were all created by a divine power. There are also some theories in which creationism and evolution coexist. One idea is that the divine being who created the world used evolution as a method. Another idea is that science and religion are actually the same thing and religion explains the unknown parts of science. For example, science says that the world couldn't have been created in seven days, but one of God's days may not be the same length

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Evolution Questions Answered

Evolution Big Idea Project

Chris Berg There are many people that are not fully informed about the concept of evolution. Because of this, they are unable to make scientific and logical connections between us humans and how we evolved from the world around us. There are a broad number of misconceptions that people have, but I decided to focus on 3 major ones:

1. Evolution is goal oriented. Many non–evolutionists say that if evolution existed, there would be some endpoint or "goal" that is reached. In other words, species are trying to become perfect. However, that is not the case. Every species is only adapting and evolving to fit their current needs and to thrive. They change because of environment, available nutrients, to stay...show more content... Closely related organisms have very similar DNA. It turns out humans share over 90% of the same DNA with ape–like creatures. We can conclude that they have a relatively recent common ancestor. Another way to determine the relatedness of two organisms is finding fossils of a species that displays an intermediate stage between the two existing ones. This intermediate species most likely became extinct, but not before some of them evolved even more towards humans. The proposed common ancestor between humans and apes is likely an extinct species named "Pan Prior". It gets pretty in depth from there, but there is no current fossil existing of it, but analysis of its DNA shows many signs of a common ancestor. It most likely existed 8 million years ago. The ape is the most closely related livingorganism to the human. It is evident that species so similar must have a common ancestor.

3. The eye cannot evolve from natural selection When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex have developed through random mutations and natural selection, even over millions of years? Although there are only a few examples, there is evidence of an eye changing slowly overtime due to the advantage it gave. Most likely, the eye only started out as a light–sensitive patch on the head of an organism. That patch must have given that organism some sort of advantage. Slowly, the eye became deeper and more open.

Evidence Of Evolution

Nora Lyang AP Bio Pd. 3

2 January 2016

Evidence of Evolution The theory of evolution is the process how organisms on Earth change over time by natural selection. The theory of evolution is so widely known that it is almost universally accepted, except for a few people that think otherwise. For a theory to become so widely known and established, there has to have been evidence to back it up. The most prominent pieces of evidence for evolution are often cited as biogeography, homology, analogy, direct evidence, and paleontology. Each of these pieces of evidence provide indication for evolution.

Biogeography is the study of where life is found and where their descendants were living in the past. Before Darwin, all scientists believed in special...show more content...

Analogous structures have similar structures, but a different origin. They also have similar functions. An example of analogy that supports the theory of evolution is speciation. Speciation is defined as the biological change over time by which new species arrive. Some might wonder how analogous structures come to be. Different species usually become more alike because of convergent evolution. For example, two species can live in different but similar environments and need to fill the same niche in different places on Earth. Because natural selection is the same around the world, the species will go through similar styles of adaptations. Animals with advantageous adaptations will be able to pass on their genes through reproduction. Reproduction continues until the advantageous adaptation is the only one left. Occasionally, the favorable variation can change the structure of the species. Limbs can be lost, gained, or changed, creating analogous structures in diverse species that live in similar niches and surroundings, but don't live in the same places. A more specific example is the similarity between the wings of birds and bats. A widespread adaptation for many species, the wings of birds and bats are analogous as flight structures. The wings of both animals have developed by different paths. In bats, the surface of the wing is a membrane without feathers whereas birds have wings covered in feathers. Although both animals can fly and have wings, they are different in many other places. Birds and bats just happen to fill the flying niche of their

The Process Of Evolution And Evolution

Sachs 1

Ella Sachs

Mrs.Jarvis

AP Biology

April 6th, 2015

The Process of Evolution

Evolution is "the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth," "Google." Google. Google, n.d. Web. 11 Apr. 2015.Evolution is the reason there is change in the genetic makeup of a population, the reason organisms are linked by common ancestors, and evolution is still happening today because of the constant change in environment. This paper focuses on these subjects within evolution and will explore all areas of the process of evolution that creates diversity and unity in life.

One key component of evolution is natural selection. Natural selection is a theory, first presented by Charles Darwin, that is well known across the globe. It is the reason why there is change of genetic makeup in evolution. Natural selection is caused by the variation between generations, as well as the survival of different individuals with different combinations of traits. The theory poses that organisms with characteristics that increase their probability of survival will be given the chance to produce more offspring. This means that the organism is more "fit". These offsprings are then given the benefiting characteristic. With time more variation throughout the species will develop. For an example of why evolution is dependent on natural selection Berkeley College talks about a population of beetles.

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