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STD 12 - 12. ecosystem — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 12. ecosystem1 Mark
MCQ
In a lake, phytoplankton grow abundant in
  • A
    Littoral zone
  • ✓
    Limnetic zone
  • C
    Profundal zone
  • D
    Benthic region
✓

Answer

Correct option: B.
Limnetic zone
b
In a lake, there are littoral zone, limnetic zone and profundal zone. In limnetic zone, the producers are mainly phytoplanktonic algae which are diatoms, green algae and blue green algae. In profundal zone, the organisms mainly depend for their food on the littoral and limnetic zone.

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