Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 12. ecosystem1 Mark
MCQ
The primary consumers in a pond ecosystem are
A
Phytoplankton
✓
Zooplankton
C
Fishes
D
Bacteria
✓
Answer
Correct option: B.
Zooplankton
b The small crustaceans (water fleas, Cyclops) are herbivores as they feed phytoplanktons. They are free-floating animals and form the zooplankton. The primary consumers in pond ecosystem are zooplanktons and other primary consumers are mosquito larvae, tadpoles, snails and tortoises
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