Ecosystem Unit Test Review

Which of the following is an example of a community?

• Squirrels, blue jays, and oak trees

• A group of twenty sandhill cranes

• A school of tuna

• Rocks, soil, and air

With which nonliving elements does an arctic fox interact?

• Rodents

• Rabbits

• Plants

• Rocks

In one ecosystem, snakes eat birds, plants make fruit, and birds eat fruit. Which is the correct food chain?

• Snake →plant →bird

• Bird → plant → snake

• Plant → bird → snake

• Snake → bird → plant

What if the role of a tree in a food chain?

• It breaks down wastes and dead organisms.

• It uses the sun’s energy to make food.

• It eats other organisms.

• It cannot make its own food.

Which of these animals is an herbivore?

• Fox

• Frog

• Deer

• Duck

Jonah is studying a river ecosystem. What biotic factors are likely to be present in a river ecosystem?

• Coral, clown fish, sponges

• Otters, ducks, bass

• Water, soil, crayfish, ducks

• Water, soil, air, sunlight

Which relationship is an example of a parasite and a host?

• Fleas and a dog

• Flowers and bees

• A hawk and a mouse

• Grasshoppers and ladybugs

What do all of the populations in an area make up?

• An ecosystem

• A habitat

• A community

• A niche

Where would you be most likely to find a salt marsh?

• At the edge of an estuary

• Beside a large lake

• Near a grassland

• On the ocean floor

How are ecosystems in the deep sea different from ecosystems in shallow ocean water?

• Deep-sea ecosystems usually have warmer water.

• Algae are more common in deep-sea ecosystems.

• Water pressure is lower in deep-sea ecosystems.

• No sunlight reaches deep-sea ecosystems.