Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?
Correct answer: A. Fish
- A. Fish
- B. Zooplankton
- C. Frog
- D. Phytoplankton
Explanation
A single species may occupy more than one trophic level. In ponds, fish occupy more than one trophic level. Small fishes act as secondary consumers. They feed on primary consumers. Large fishes act as tertiary consumers. They feed on smaller fish.
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