Two groups look externally similar but cannot breed successfully with each other. What can this indicate?
Answer and explanation
Correct answer: They may be different species
A biological species is commonly identified by the ability of its members to interbreed and produce viable, fertile offspring. External appearance alone may be misleading because unrelated groups can look alike, while closely related populations may differ internally. If two groups cannot breed successfully, reproductive isolation may indicate that they are different species. Hence A is the best answer; B and C ignore genetic or reproductive evidence, and D does not explain the failure to interbreed.
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What is the correct answer to this question?
They may be different species
Why is this the correct answer?
A biological species is commonly identified by the ability of its members to interbreed and produce viable, fertile offspring. External appearance alone may be misleading because unrelated groups can look alike, while closely related populations may differ internally. If two groups cannot breed successfully, reproductive isolation may indicate that they are different species. Hence A is the best answer; B and C ignore genetic or reproductive evidence, and D does not explain the failure to interbreed.
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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