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Inference:
a. Homologous Organs: These are organs having a similar structural plan, but different
functions. For example, the wing of a bat, the flipper of a seal, the front leg of a horse and
the arm of a man perform different functions, but have the same structural plan.
b. Analogous Organs: These are organs having different structural plans, but common
functions. For example, the wing of a bird and the wing of an insect.

SAI International School
Subject- Biology
Class room Activity Work Sheet- 10

Name: Admn. No: Class/Sec:
Date: _________________

1. Distinguish between homologous and analogous organs. (Two points).

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2. Identify the analogous and homologous amongst the following:
Wings of an insect, wings of bat, forelimbs of frog, forelimbs of humans.
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