niche overlap

niche differentiation

competitive exclusion

niche decay

level of limiting factor

number of individuals

niche level

number of tolerances

adapted to a large range of environments

adapted to a small range of environments

adapted to any environment

poorly adapted to the environment

convergent evolution

divergent evolution

coevolution

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Habitat

Population

Biome

Niche

character displacement

climax community

resource partitioning

pioneer species

A snake unhinges its jaw to eat a rabbit it just caught.

A hognose snake rolls over, slows its breathing, and hangs its tongue out to pretend to be dead.

A herd of buffalo encircle their young to protect them from a pack of wolves.

A dung beetle rolls a piece of dung across the desert.

The long neck of a giraffe

Penguins huddling together for warmth

A camel's hump used to store water

A polar bear's white fur used for camouflage

The function of these bones is the same in all animals

They live in similar environments

They have a common ancestor

All organisms resemble humans

Homologous structures

Analogous structures

Vestigial structures

All of the above