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The forelimbs of a human, a cat, a whale and a bat differ in function but share a similar bone structure and development. These are examples of which kind of organ?
AHomologous organs
BAnalogous organs
CVestigial organs
DAtavistic organs
Answer & Solution
Correct answer: A. Homologous organs
1. Homologous organs share a common basic structure and developmental pattern but may perform different functions.
2. The forelimbs of human, cat, whale and bat have a similar bone plan yet do different jobs.
3. Analogous organs look and work alike but have different origins, which is the opposite case and rules out option B.
4. So these forelimbs are homologous organs, option A.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 19 Origin and Evolution of Life "Evidences from Morphology and Anatomy", p.282_
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