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Organisms and Populations — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations1 Mark
MCQ
Two organisms, are showing commensalism type of interaction. In such relationship:
  • A
    One is benefitted, and the other is neither harmed nor benefitted
  • B
    Mutual beneficial for both the organisms
  • C
    One organism in harmed and the other is severly affected
  • D
    One is benefitted and the other is harmed
✓

Answer

  1. One is benefitted, and the other is neither harmed nor benefitted

Explanation:

In commensalism, one species is benefitted without the other being harmed. It is of two types - periodic contact and continuous contact.

Some examples of periodic contact commensalism are jackal and hyenas accompanying big cats like tiger or lions, for eating small bits of leftover of prey's body; sucker fish attaches to the underside of shark and feed on small leftover when the shark is feeding.

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