Question

Birds feed on insects. Which of the following terms correctly define birds?

• A. herbivore, decomposer
• B. carnivore, consumer
• C. producer, heterotroph
• D. autotroph, herbivore

Answer 1

The correct option is B carnivore, consumer

The organisms which feed on other organisms are called consumers.
Consumers are further classified into:
Primary consumers - These are organisms which feed on plants (producers) and are commonly called herbivores. E.g. grasshopper, elephant, etc.
Secondary consumers - These are organisms which feed on primary consumers or herbivores and are commonly called carnivores. E.g. Frog, fox, etc.
Tertiary or apex consumers - These are the organisms which feed on herbivores as well as carnivores. E.g Tiger, lion, etc.