16.2 Living Things Need Energy

an organism that eats only animals

• omnivore

• carnivore

• herbivore

• energy pyramid

a triangular diagram that shows an ecosystem's loss of energy

• food chain

• omnivore

• herbivore

• energy pyramid

an organism that eats both plants and animals

• omnivore

• herbivore

• food web

• carnivore

an organism that eats only plants

• food web

• carnivore

• omnivore

• herbivore

the pathway of energy transfer as a result of the feeding patterns of organisms

• food chain

• food web

• energy pyramid

• herbivore

a diagram that shows the feeding relationships between organisms in an ecosystem

• energy pyramid

• food web

• herbivore

• food chain

Organisms that can make their own food from sunlight are called

• decomposers

• consumers

• producers

• carnivores

Grass is eaten by prairie dog. The prairie dog is eaten by a coyote. This is an example of

• an abiotic element

• an omnivore

• a herbivore

• a food chain

One food web arrow goes from a prairie dog to a coyote, showing that

• the coyote is bigger

• the coyote eats the prairie dog

• the praire dog eats the coyote

• the prairie dog is a producer

The decrease in the wolf population in Yellowstone National Park is an example of

• how an energy pyramid works.

• how abiotic factors effect animal populations.

• how the availability of living resources affects all organisms.

• how a food chain works.