All the different populations that live together in an area

all the living (biotic) and nonliving (abiotic) things that interact in an area

An organism's particular role (job) in an ecosystem.

The study of how living things interact with each other and their environment.

living or once-living things in an ecosystem

non-living things in an ecosystem

Place where an organism lives; it includes food, water, shelter, space, and air for the organism.

Counting only the number of rabbits in a field is an example of a ...

The rabbits, snakes, birds, trees, mice, and flowers in a field is an example of a ...

A tree's _________ in an ecosystem is to provide food, shelter, and oxygen in an ecosystem.

Rocks, water, air, plants, frogs, dragonflies are all part of an ...

Air, temperature, water, sunlight, and rocks are all examples of ...

Fungi, frogs, worms, trees, dead leaves, and lightning bugs are all examples of...

A tree that provides food and shelter for squirrels is an example of a...