Levels of Organization in Biology

LEVELS OF T ORGANIZATION !

S E W T INIE V BIOLOGY E

R

R. PERRY - MALIBU HIGH SCHOOL

atom molecule organelle cell tissue organ

organ system organism population community ecosystem biosphere

THE SMALLEST COMPONENT OF MATTER IS CALLED AN . . .

ATOM The ATOM is the smallest component of matter that still retains the physical and chemical properties of that matter.

TWO OR MORE ATOMS BONDED TOGETHER FORM A . . .

atoms !

MOLECULE A MOLECULE is two or more atoms bonded together.

THE SEPARATE STRUCTURES INSIDE CELLS (mitochondria, lysosomes, etc.)

ARE CALLED . . .

master master molecules molecules and and molecules molecules !!

ORGANELLES ORGANELLES …are the separate structures (mitochondria, lysosomes, etc.)

inside of cells.

THE BASIC OR FUNDAMENTAL UNIT OR BUILDING BLOCK OF LIFE IS CALLED A. . .

organelles !

ALL LIVING THINGS ARE MADE OF CELLS

CELL ... the fundamental unit or building block of life.

A GROUP OF CELLS WORKING TOGETHER TO PERFORM A SIMILAR JOB IS CALLED A. . .

cells !

TISSUE ‌ a group of CELLS working together to perform a similar job.

A GROUP OF TISSUES WORKING TOGETHER TO PERFORM A SIMILAR JOB IS CALLED AN. . .

tissues !

ORGAN ‌ a group of TISSUES working together to perform a similar job.

A GROUP OF ORGANS WORKING TOGETHER TO PERFORM A SIMILAR JOB IS CALLED AN. . .

organs !

ORGAN SYSTEM

‌ a group of ORGANS working together to perform a similar job.

ONE LIFE FORM, OR ONE LIVING ENTITY IS CALLED AN. . .

ORGANISM one life form or one living entity.

ORGANISM = LIFE single celled organisms

organisms that are one

-- cell

organisms made of

-- tissues multi-celled organisms

organisms made of

-- organs

organisms made of

-- organ systems

ALL OF THE ORGANISMS OF THE SAME SPECIES, AT THE SAME TIME AND PLACE ARE CALLED A. . .

POPULATION ‌ all of the organisms of the same species at the same time and place. smock smock smock

ALL OF THE DIFFERENT POPULATIONS AT THE SAME TIME AND THE SAME PLACE ARE CALLED A. . .

populations !

COMMUNITY

‌ all of the POPULATIONS at the same time and place.

THE LIVING COMMUNITY WITH THE PHYSICAL AND CHEMICAL FACTORS OF ITS ENVIRONMENT IS CALLED AN ...

environment !

community !

ECOSYSTEM ECO ‌ the living community with the physical and chemical factors of its environment.

ALL OF THE DIFFERENT ECOSYSTEMS ON EARTH ARE CALLED THE. . .

ecosystems !

BIOSPHERE … all of the different ECOSYSTEMS on earth.

the end