Understanding Consumers and Food Chains

What is the primary source of energy for all living things?

• Water

• The Sun

• Oxygen

• Glucose

Which of the following is an example of a herbivore?

• Human

• Lion

• Bear

• Cow

What do omnivores eat to obtain energy?

• Only animals

• Neither plants nor animals

• Both plants and animals

• Only plants

In a food chain, what role do decomposers play?

• They produce energy from sunlight.

• They consume only plants.

• They are at the top of the food chain.

• They break down dead material and recycle nutrients.

What is the relationship between producers and decomposers in an ecosystem?

• Producers eat decomposers.

• Decomposers provide nutrients for producers.

• Producers and decomposers compete for sunlight.

• Decomposers are a type of producer.