Food Webs and Energy Pyramid Review

Food Webs and Energy Pyramid Review

Multiple Choice

The source of energy for all ecosystems is

• producers

• the sun

• water

• consumers

Multiple Choice

This is a(n)

• A. producer

• B. autotroph

• C. consumer

• D. both A and B

Producers and Consumers

Plants are producers (autotrophs)

Animals are consumers (heterotrophs)

Multiple Choice

Squirrels eat nuts, seeds and berries. They are

• herbivores

• omnivores

• carnivores

Consumers

• Herbivores - eat just plants

• Omnivores - eat plants and animals

• Carnivores - eat just animals

Multiple Choice

Mice eat seeds, nuts and berries they belong in which TROPHIC level on an energy pyramid?

• Level 1: Producers

• Level 2: Primary consumers

• Level 3: Secondary consumers

• Level 4: Tertiary consumers

Trophic levels

Count from the bottom up

Multiple Choice

As you go up a food chain, food web or energy pyramid, energy

• increases

• decreases

Energy Transformation

The higher up you go, the less energy is available.

Multiple Choice

Which of these is a decomposer?

• rats

• tree roots

• bacteria