Two groups look very similar but cannot produce successful offspring with each other. What is this a strong sign of?
Answer and explanation
Correct answer: They may be different species
A biological species is commonly understood as a group whose members can interbreed and produce viable, fertile offspring. External appearance alone may be misleading, because closely related groups can look alike while being reproductively isolated. Therefore option A is the strongest conclusion, expressed cautiously as “may be.” B ignores reproductive isolation, C is unsupported, and D does not define a species.
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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 understood as a group whose members can interbreed and produce viable, fertile offspring. External appearance alone may be misleading, because closely related groups can look alike while being reproductively isolated. Therefore option A is the strongest conclusion, expressed cautiously as “may be.” B ignores reproductive isolation, C is unsupported, and D does not define a species.
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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