alleryA pond ecosystem provides examples of all of the following EXCEPT:
AConsumers like fish
BProducers like phytoplankton (option)
CCrustaceans replacing photosynthesis
DDecomposers like bacteria
Answer & Solution
Correct answer: C. Crustaceans replacing photosynthesis
1. Crustaceans are consumers, not producers; they cannot perform photosynthesis.
2. Photosynthesis in ponds is carried out by phytoplankton and aquatic plants.
3. Fish are consumers; bacteria decompose dead matter.
_Source: syllabus Science, Ch 13 "Our Environment", §13.1_
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