Matter in Ecosystems

A food chain models how energy is transferred in an ecosystem.

• True

• False

An example of interdependence is a plant's need for carbon dioxide that animals exhale and the food plants provide to the animals.

• True

• False

A food chain shows how many organisms eat the same kind of food

• True

• False

A producer eats animals for energy

• True

• False

Decomposers break down decaying material in an ecosystem

• True

• False

Which of the following is not an abiotic factor?

• Rocks

• Air

• Animals

• Water

Which of the following describes the niche of a lion in an ecosystem?

• Herbivore

• Producer

• Consumer

• Decomposer

Energy and other materials from dead organisms are recycled back into the soil by

• Producers

• Herbivores

• Omnivores

• Decomposers

A(n)___________ shows the relationships among all species in an ecosystem

• Environmental change

• Energy pyramid

• Food web

• Food Chain

Label this food chain

c

d

b

e

a

producer

secondary consumer

sun

primary consumer

decomposer