Energy in Ecosystems

As energy moves up the pyramid, each level has ___________ energy available than the level below.

• more

• less

The most energy is available at the_______________ level of the pyramid.

• lowest

• middle

• highest

_____________________ moves through an ecosystem when one organism eats another.

• sunshine

• heat

• energy

Mushrooms and bacteria are common _________________

• consumers

• producers

• decomposers

An organism that can make its own food is a ________________

• producer

• consumer

• decomposer

Organisms may play _____________ role(s) in an ecosystem.

• many

• only one

Energy enters most ecosystems as _________________.

• water

• rain

• sunlight

Organisms that make their own food (check all that apply)

• grasshopper

• alfalfa

• mouse

• grass

• rabbit

Consumers that eat only animals (select all that apply)

• rabbit

• coyote

• grasshopper

• hawk

Which organism is a first-level consumer?

• coyote

• hawk

• grasshopper