Unit 2 scienceº

UNIT 2

THE VARIETY OF LIFE

MARÍA LUCAS GUTIÉRREZ - 5ºA

1. THE FIVE KINGDOMS A) THE PLANT KINGDOM B) THE ANIMAL KINGDOM C) THE ALGA AND PROTISTA KINGDOM D) THE BACTERIA KINGDOM E) THE FUNGUS KINGDOM

2. RELATIONSHIPS BETWEEN LIVING THINGS A) INTRASPECIFIC RELATIONSHIPS A.1. REPRODUCTION A.2. PROTECTION A.3. FEEDING B) INTERSPECIFIC RELATIONSHIPS B.1. PREDATION B.2. PARASITISM B.3. MUTUALISM B.4. SYMBIOSIS

1. THE FIVE KINGDOMS Scientists have identified nearly two millón of Earth’s species. To clasify all living things we study their celular structure and nutrition.

There are five kingdoms: 

THE PLANT KINGDOM  Plants are multicelular living thigs.  They make their own food through photosynthesis.  They can’t move because their roots are fixed to the ground.

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THE ANIMAL KINGDOM  Animals are multicelular living thigs.  They feed one other living things.  Most animals move to forage for food, to find shelter or to escape predators.

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THE ALGA AND PROTISTA KINGDOM A) Algae: It can be unicellular o multicellular. They make their own food.

B) Protozoa: They are unicellular and feed on other living things.

For example ameobas and paramecium.

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THE BACTERIA KINGDOM

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THE FUNGUS KINGDOM

- There are multicellular fungi (mushrooms) and unicellular fungi (yeasts).

- They do not produce their own food.

- Some fungi like plants, cannot move.

2. RELATIONSHIPS BETWEEN LIVING THINGS ï‚· Intraspecific relationships (between living organisms of the same species) - Reproduction: same species interact and breed to produce members of their species

- Feeding: same especies hunt in packs to catch larger animals for food.

- Protection: Some specis live in herds to protect themselves from predator attacks.

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Interspecific relationships (between living things) –

Predation: one organisms kills and eats another.

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Parasitism: one organism lives in or on another called the host.

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Mutualism: this relationship brings benefit to both organisms.

– Symbiosis: thisis a close relationship between two organisms (lichens).

THE END