Ecosystem and Food Webs Quiz

Food webs model the way _______ move through an ecosystem.

• Predators and prey

• Wind and water

• Consumers and producers

• Energy and matter

What is the source of energy for photosynthesis?

• The Sun

• The ocean

• Earth's crust

• Tubeworms

The relationship between a food web and a food chain is most similar to the relationship between a road map and:

• A mountain range

• A driving route

• A car

• A bridge

Lions eat both zebras and wildebeests. How would the arrows in a food web display this relationship?

• Option a

• Option b

• Option c

• Option d

What is the role of producers in an ecosystem?

• To harness energy

• To break down dead material

• To prey on other species

• To create sunlight

How do primary consumers get their energy?

• By performing photosynthesis

• By breaking down dead organisms

• By eating producers

• By eating decomposers

Wolves eat elk, and elk eat blackberries. Which species is a secondary consumer?

• Wolves

• Elk

• Blackberries

• None of the above

What idea did Colleen Cavanaugh discover through her research on deep-sea food webs?

• Food webs contain multiple food chains

• The Sun is not the energy source of all food webs

• Food webs map the flow of energy

• All food webs contain producers

Which sign represents the role of a decomposer?

• Option a

• Option b

• Option c

• Option d

Why do scientists use scientific models?

• They're exact representations of nature

• They permanently establish scientific knowledge

• They're helpful for finding patterns

• They reduce the need for research