Ecosystems Review

Which ecosystem receives the least amount of precipitation?

• estuary

• grassland

• tropical rain forest

Which statement best describes what an ocean and a pond have in common?

• They are both ecosystems that rely on each other for survival.

• They are both ecosystems that support human and animal life.

• They are both ecosystems that support plants, animals, and microorganisms.

• They are both ecosystems that support the same types of plants, animals, and microorganisms.

Which lists animals that live in an aquatic ecosystem?

• black bear, deer, vole

• panthers, monkeys, snakes

• ducks, turtles, amphibians

• prairie dogs, bison, grasshoppers

Which ecosystem contains the largest mammals?

• ocean

• pond

• river

• swamp

Which best explains how producers make their own food?

• Producers receive energy from rain and use it to produce water for their food.

• Producers receive energy from rain and use it to produce gases for their food.

• Producers receive energy from the sun and produce sugars for their food.

A brown bear eats a variety of foods including berries, insects, and small animals. Which BEST describes a brown bear?

• producer

• herbivore

• carnivore

• omnivore

Which best describes the role of both mushrooms and worms in an ecosystem?

• They provide food for carnivores.

• They provide food for herbivores.

• They provide nutrients for the soil.

• They provide nutrients during photosynthesis.

Which describes a consumer in a pond ecosystem?

• catfish

• cattail

• water lily

A bee depends on certain flowers for food. The flowers depend on the bee to do what?

• make sugars for photosynthesis.

• remove wastes for healthy growth.

• sting herbivores for protection.

• carry pollen for reproduction.

Which will most likely cause a decrease in predator populations?

• an increase in prey populations

• a decrease in prey populations

• a decrease in decomposers

• an increase in producers