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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.

Related tags

SpeciesReproductive IsolationSpeciationHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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