Why can it be wrong to call two organisms closely related only by external similarity?
Answer and explanation
Correct answer: Because similar function can make form look similar while basic structure may differ
External resemblance may result from analogous adaptation: unrelated organisms can develop similar shapes or parts because they perform similar functions in comparable environments. This is called convergent evolution and does not necessarily indicate close ancestry. Reliable evolutionary comparison also considers internal anatomy, development, fossils, and molecular evidence. Option A is correct because it identifies the difference between functional similarity and shared structural origin; the other choices are false or overgeneralised.
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What is the correct answer to this question?
Because similar function can make form look similar while basic structure may differ
Why is this the correct answer?
External resemblance may result from analogous adaptation: unrelated organisms can develop similar shapes or parts because they perform similar functions in comparable environments. This is called convergent evolution and does not necessarily indicate close ancestry. Reliable evolutionary comparison also considers internal anatomy, development, fossils, and molecular evidence. Option A is correct because it identifies the difference between functional similarity and shared structural origin; the other choices are false or overgeneralised.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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