Rem 8.18 Levels of Organization

Levels of Organization

These are the levels of biological organization you need to know.

Let's look at what makes up each level.

Biological Organization

Organism

One living thing.

Multiple Choice

What is this picture an example of?

• organism

• population

• community

• ecosystem

• biome

Population

Organisms of the
same species that
live in the same area.

Multiple Choice

What is this picture an example of?

• organism

• population

• community

• ecosystem

• biome

Community

A community is all of the
populations that live in the
same area.

Multiple Choice

What is this picture an example of?

• organism

• population

• community

• ecosystem

• biome

Biotic & Abiotic

Biotic factors are things that
are living or were once living.

All the levels so far have only
biotic factors.

Abiotic factors are things that
are not living and have never
been living.

Every level after this will
have biotic and abiotic
factors.

Multiple Select

Which of these choices is abiotic ?

• worm

• shovel

• clouds

• sun

Ecosystem

All of the living things that
live in the same area AND all
of the non-living things in
that area.

Multiple Choice

What is this picture an example of?

• organism

• population

• community

• ecosystem

• biome

Check

The levels of individual,
population, and community
all have only biotic (living)
factors.

Ecosystem is the first level
that includes abiotic
(non-living) factors also.

What level of
organization is this?

This is an ecosystem. The
lowest level of biological
organization that has both
biotic and abiotic factors.

Multiple Select

What is biotic in this picture?

• concrete

• children

• water

• trees

• air

Biome

A group of
ecosystems with
similar weather
and climate.

Biomes

A biome is all of the ecosystems
around the world that have the
same climate. Climate is
determined by precipitation and
temperature for terrestrial (land)
biomes. These also determine the
soil. The abiotic characteristics of a
biome help determine the biotic
factors, plants and animals found
there.

Multiple Choice

What is this picture an example of?

• organism

• population

• community

• ecosystem

• biome

Biosphere

This is where all life exists
and the water, air, and soil
that they live in.

Do you know?

What is the difference
between the groups named
on the right and those on the
left?

Open Ended

What is the difference between the levels on the right of the pyramid and those on the left?

Draw

Label