Ecology Unit Test

Where does all energy for living things on Earth originate?

• the sun

• the wind

• Water

Give an example of a food chain.

How are nonliving (abiotic) factors important to an ecosystem?

Draw a model of living and nonliving things interacting.

Which of these is a biotic factor?

• Temperature

• Snake

• Rocks

• Wind

Which of these is an abiotic factor?

• Flowers

• Dogs

• Trees

• Oxygen

What is the difference between a food web and a food chain?

Draw an example of a food chain.

Should humans help control the growth or decline of animal populations?

Why or why not?

Why might some animals grow out of control while others stay in balance or go extinct?