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Ecosystems — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems2 Marks
Question
What does secondary productivity in an ecosystem indicate? List any two factors by which productivity is limited in an aquatic ecosystem.
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Answer

The rate of assimilation and formation of new organic matter by consumers is called secondary productivity.The factors which affect productivity in an aquatic ecosystem are:
  1. Nitrogen in marine ecosystem.
  2. Light, which decreases with increasing depth of water.

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