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Ecosystems — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems1 Mark
MCQ
Keystone species in an ecosystem are those which.
  • A
    Are present in maximum number.
  • B
    Are most frequent.
  • C
    Attain a large biomass.
  • D
    Contribute to ecosystem properties.
✓

Answer

  1. Are most frequent.

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