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AIIMS 2001
Exam
AIIMS
Year
2001
Subject
Zoology
Chapter
Organisms and Populations

AIIMS 2001 · Zoology · Organisms and Populations

Mutualism is found in

Mutualism is found in

Options

  1. Ahemmit crab and sea anemone
  2. Box pecker and rhinoceros
  3. Czoochlorellae and Hydra
  4. DE.coli and man.

Correct answer

C. zoochlorellae and Hydra

Step-by-step solution

Mutualism is an obligatory positive interspecific interaction strongly beneficial to both species. The unicellular photosynthetic algae, called Zoochlorella live symbiotically in the outer tissues of coelenterates. Algae are photosynthetic and produce oxygen and food beneficial to hosts and in exchange they obtain materials like carbon dioxide and nitrogenous wastes released by metabolism of host animals.
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