Question

in a food chain, which of the following is an organism that eats only other animals? primary producer (autotrophs) tertiary consumer (carnivores) primary consumer (herbivores)

Explanation:

• Primary producers (autotrophs) make their own food via photosynthesis (e.g., phytoplankton, SAV in the food web).
• Primary consumers (herbivores) eat primary producers (e.g., zooplankton eating phytoplankton).
• Tertiary consumers (carnivores) eat other animals. For example, in the Chesapeake Bay Waterbird Food Web, ospreys (tertiary consumers) eat small planktivorous fish (secondary consumers) which in turn eat zooplankton (primary consumers). Tertiary consumers are carnivores that consume other animals as their food source.

Answer:

B. tertiary consumer (carnivores)