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Organisms and Populations — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations1 Mark
MCQ
When one organism is benefited without affecting the other, the interaction is called as:
  • A
    Parasitism
  • B
    Commensalism
  • C
    Saprophytism
  • D
    Symbiosis
✓

Answer

  1. Commensalism

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 left over of prey's body; sucker fish attaches to underside of shark and feed on small left over when shark is feeding.

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