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Question

Which of the following shows the sexual dimorphism?

A
Hydra and Ascaris
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B
Hydra and Oryctolagus
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C
Ascaris and Pheretima
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D
Ascaris and Oryctolagus
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Solution

The correct option is D Ascaris and Oryctolagus
Sexual dimorphism is a phenotypic differentiation between males and females of the same species.
For example, Ascaris male is smaller than Ascaris female. The male Oryctolagus or male rabbit is called a buck while the female is called a doe. Males are usually heavier than females.
Thus, the correct answer is option D.

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