Grade 7 Ecosystems Final

What do consumers need to survive?

• Sunlight

• Other plants or animals

• Rocks and minerals

• Water only

Which of these is not a consumer?

• Walrus

• Gecko

• Mushroom

• Pelican

Which of the following is a biotic factor?

• Water

• Your chair

• Lion

• Soil

__________ return all the nutrients back to the soil in a food chain.

• Decomposers

• Herbivores

• Omnivores

• Carnivores

What is this process called?

• Carbon Cycle

• Hydrological Cycle

• Water Cycle

• Nitrogen Cycle

What happens during condensation in the water cycle?

• Water turns into vapor

• Water cools and forms clouds

• Water collects in rivers

• Water runs off the land

What is the process called when ecosystems take a long time to develop?

• Transformation

• Succession

• Migration

• Evolution

What is the role of a producer in an ecosystem?

• To decompose organic matter

• To produce energy from sunlight

• To migrate to different areas

• To consume other organisms

Which of the following is an example of a primary consumer?

• Hawk

• Grasshopper

• Wolf

• Fungi

What is the main source of energy for producers in an ecosystem?

• Wind

• Sunlight

• Soil

• Water