Biology

Jaliyah Doyle

11 March, 13:05

Why are shellfish populations often a good indicator of water quality?

A. many shellfish are filter feeders that absorb toxins from the water

B. many shellfish are herbivors, and reduce vegetation overgrowth

C. many shellfish are photosynthesizers, and add oxygen to the water

D. many shellfish are predators, and reduce the number of waste-creating fish

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