Question

For their energy demands, organisms at each trophic level depend on those at the

• A.
  Any trophic level
• B.
  Lower trophic level
• C.
  Sunlight
• D.
  Higher trophic level

Answer 1

The correct option is B

Lower trophic level
Trophic levels in a food chain

• The trophic level of an organism depicts the nutritional status of the organism in the food chain.
• A food chain is a sequence of organisms in which energy gets transferred from the first trophic level to the next in the form of food.
• The following depicts a sequence of trophic levels in the food chain:- Producers (T1) → Primary consumers (T2) → Secondary consumers (T3)→ Tertiary consumers (T4)
• The above food chain shows that the primary consumers (T2) derive energy from the producers (T1) and the secondary consumers (T3) derive energy from the primary consumers (T2).
• Hence, for their energy demands, organisms at each trophic level depend on those at the lower trophic level.

Final answer
(a) Lower trophic level