GRADE 8 BIOLOGY REVISION QUIZ 3 - 2025 CDOWN

In a deciduous forest, insects, birds, rodents, and deer are:

• tertiary consumers

• secondary consumers

• primary consumers

Which grouping is an example of a possible food chain?

• grass → cow → human

• cow → grass → human

• ant → grass → cow

• grass → human → cow

Which description is a characteristic of a heterotroph?

• uses energy directly from the Sun

• uses chlorophyll to absorb energy

• undergoes photosynthesis to create glucose

• obtains energy by consuming other organisms

Which one is a heterotroph?

• plant

• flower

• producer

• consumer

What is the ultimate energy source for living organisms?

• energy stored in chemical bonds

• the Sun

• energy stored in cells

• nuclear power

Which are NOT considered heterotrophs?

• herbivores

• carnivores

• decomposers

• producers

A meat eater that eats secondary consumers is a:

• primary consumer

• secondary consumer

• tertiary consumer

• quaternary consumer

Which organisms are the first step in a food chain?

• consumers

• decomposers

• producers

• herbivores

An African lion is a:

• decomposer

• consumer

• producer

• herbivore

A lion hunts and kills other organisms to obtain energy. What type of organism is the lion?

• unicellular

• photosynthetic

• autotroph

• heterotroph