GRADE 8 BIOLOGY REVISION QUIZ 5 2025 CDOWN

The two top predators of the deciduous forest are bears and cougars. They make up the ___ of this biome.

• tertiary consumers

• secondary consumers

• primary consumers

• none of the above

In which direction does energy flow?

• producer to consumer

• consumer to producer

• both a and b

Describe the amount of energy that is passed from a producer to a consumer.

• Consumers have more energy.

• Producers have more energy.

• The energy level stays the same.

• There is no energy passed.

Which is most likely to be a tertiary consumer?

• fish

• lion

• bear

• rabbit

A black bear is a:

• carnivore

• omnivore

• producer

• herbivore

What is true about an autotroph?

• It is an apex predator.

• It is at the top of the food pyramid.

• It makes its own food.

• It is considered a scavenger.

Which type of organism receives and uses energy directly from the Sun?

• producer

• primary consumer

• heterotroph

• decomposer

What is likely to happen to the owl population if foxes die out?

• It will decrease because there will be more competition with stoats for food.

• It will increase because there will be more rats, beetles, and rabbits for them to eat.

• It will stay the same because owls do not eat foxes.

• It will stay the same because stoats will eat less food.

Which sequence describes the flow of energy in an ecosystem?

• carnivore → herbivore → plant → Sun

• plant → herbivore → carnivore + Sun

• Sun → carnivore → herbivore → plant

• Sun → plant → herbivore → carnivore