Why can relying only on external appearance be wrong while deciding relationships among organisms?
Answer and explanation
Correct answer: Because organs with similar function may have different structure
External appearance or function alone may be misleading because analogous organs can perform similar functions while having different basic structures and evolutionary origins. Reliable relationships are assessed using deeper anatomy, embryology, fossils and molecular evidence together. Therefore A expresses the relevant caution. B is too absolute, C wrongly dismisses function, and D is false because fossils provide important evidence of evolutionary history.
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What is the correct answer to this question?
Because organs with similar function may have different structure
Why is this the correct answer?
External appearance or function alone may be misleading because analogous organs can perform similar functions while having different basic structures and evolutionary origins. Reliable relationships are assessed using deeper anatomy, embryology, fossils and molecular evidence together. Therefore A expresses the relevant caution. B is too absolute, C wrongly dismisses function, and D is false because fossils provide important evidence of evolutionary history.
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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