Ecosystems Review

Which of the following organisms is a producer?

• grass

• rabbit

• fox

• snake

Which of the following organisms is a primary consumer?

• grass

• rabbit

• fox

• snake

Which of the following organisms in competition with the weasel for their food source?

• grass

• rabbit

• fox

• snake

Which of the following organisms is a herbivore?

• grass

• rabbit

• fox

• snake

What would happen to the rabbit population if the fox population moved out of the area represented by the food web?

• The rabbit population would increase

• The rabbit population would decrease

• The rabbit population would neither increase nor decrease

What might happen if you remove a primary consumer from the ecosystem?

• There would be more food for secondary consumers.
• The number of primary consumers would increase.
• The number of plants would increase.
• The number of secondary consumers would increase.

A consumer that hunts is called:

• a producer.
• an omnivore.
• a predator.
• a herbivore.

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph

• Producer

• Heterotroph

• Mutualist

What does a food chain represent?

• How all living organisms within a habitat are connected.
• All of the things that a particular animal eats.
• How plants create their own food.
• A single path of energy transfer within a habitat.