Question

which of the following is true about feeding relationships in a community?
a herbivores are primary consumers that obtain their energy from the flesh of other animals.
b autotrophs are primary producers that obtain their energy directly from the sun.
c carnivores are usually secondary consumers that obtain their energy from tertiary consumers.
d decomposers are a type of consumer that obtains their energy directly from the sun.

Explanation:

• Option A: Herbivores eat plants, not animal flesh. Primary consumers (herbivores) get energy from producers (plants), so A is false.
• Option B: Autotrophs (like plants, some bacteria) are primary producers. Most autotrophs (photoautotrophs) use photosynthesis to get energy directly from the sun, so B is true.
• Option C: Carnivores (secondary consumers) eat primary consumers (herbivores), not tertiary consumers. Tertiary consumers eat secondary consumers, so C is false.
• Option D: Decomposers break down dead organic matter. They don't get energy from the sun directly; producers do that. Decomposers are not consumers that get energy from the sun, so D is false.

Answer:

B. Autotrophs are primary producers that obtain their energy directly from the sun.