2024 Ecosystems Unit Test Review

An organism that makes its own food is known as a _______.

• producer

• consumer

• carnivore

• decomposer

A food chain is shown below. Which organism in the food chain receives energy directly from catfish?

• tree

• cicada

• alligator

• all of these

When an earthworm feeds upon the remains of a dead raccoon, it is acting as a _______.

• predator

• decomposer

• parasite

• producer

Which organisms get their energy by breaking down plants and animals that have already died?

• cows

• decomposers

• consumers

• trees

A food chain is shown. Which organism in the food chain is a producer?

• grass

• heron

• frog

• grasshopper

A food web is a combination of all of the food chains in a particular ecosystem. The diagram shows one possible food web for a woodland ecosystem. Which animal is the top consumer in all the food chains involved in this food web?

• the termites

• the rabbit

• the fox

• the berry bush

The Sun provides energy. Plants use the energy to make food. How do animals get energy?

• Animals get energy by eating the plants.

• Animals absorb the Sun's energy and make their own food.

• All animals get energy by hibernating.

• Animals do not need energy.

Based on the food web, which of the following is true?

• The animals eat only other animals for food.

• Some of the animals eat plants for food, and some of the animals eat other animals for food.

• The animals eat only plants for food.

• The animals eat neither plants nor animals for food.

In an ecosystem, _______ are producers because they make their own food.

• plants

• herbivores

• omnivores

• animals

Producers are usually the first organisms listed in a food chain. They provide energy to the other organisms in the food chain. Producers get energy from _______.

• the Sun

• eating plants

• water

• eating animals