Ecosystems Review

Which of the following is the BEST definition of the word Ecosystem?

• All the living and nonliving things in an area

• All the nonliving things in an area

• All the living things in an area

• The place where an organism lives

How do living things get their food?

• Producers eat consumers

• Producers eat other producers

• Consumers only eat other consumers

• Producers make their own food from sunlight

Which type of animal eats only other animals?

• Omnivore

• Carnivore

• Producer

• Herbivore

After the sun, where does a food chain start?

• With animals that eat plants

• With animals that eat other animals

• With plants that eat other plants

• With plants that make their own food

Where would a decomposer be in a food chain?

• at the beginning

• at the end

• between a producer and a consumer

• between 2 consumers

All food webs include

• insects

• mushrooms

• producers

• snakes

A hawk needs to eat many mice and rabbits because

• There are lots of mice and rabbits in its ecosystem

• The hawk gets only part of the energy from animals it eats

• The hawk is part of a large food web

• Each animal it eats provides a lot of energy

What causes an increase in water in an environment?

• flood

• fire

• drought

• building roads

Suppose a river is dried up. What would MOST LIKELY happen to the fish that live in the river?

• They would learn to live on land

• They would die

• They would move to a nearby lake

• They would grow lungs

When there in an increase in the number of predators, the prey population

• Moves to a new environment

• Does not change

• Get larger

• Gets smaller