GRADE 8 BIOLOGY REVISION QUIZ 2 - 2025 CDOWN

What is the last component of the food chain?

• producer

• consumer

• decomposer

• predator

Mushrooms and bacteria are considered:

• producers

• consumers

• carnivores

• decomposers

What is the primary purpose of a food web?

• illustrates what eats what

• diagrams the apex predator in a chain

• depicts the interconnectedness of organisms

• shows the movement of energy in an ecosystem

What is a model that shows ALL the feeding relationships in an ecosystem?

• habitat

• food web

• food chain

• biosphere

Organisms that exclusively feed on producers are

• herbivores

• omnivores

• carnivores

• predators

A gazelle eats grass and is later eaten by a tiger. Which is the prey?

• lion

• tiger

• grass

• gazelle

What is the purpose of a food chain?

• shows what organisms eat which foods

• shows the importance of the Sun’s energy

• depicts the predator/prey relationships between organisms

• shows the transfer of energy between trophic levels

What is the difference between a food chain and a food web?

• The interlinking energy needed for a food chain is greater than for a food web.

• More gas is given off by the microorganisms in a food chain than in a food web.

• Food chain refers to one path of energy, whereas a food web refers to multiple paths of energy.

• None of the above

Which term describes an organism that eats both plants and animals?

• herbivore

• carnivore

• omnivore

• decomposer

Which is true about energy in a food chain?

• Energy increases as it moves up trophic levels.

• Energy remains constant through each trophic level.

• Energy is lost as heat at each trophic level.

• Energy is stored in producers only.