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Question

Which one of the following is matching pair of an animal and a certain phenomenon it exhibits?

A
Pheretima- Sexual dimorphism
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B
Musca- Complete metamorphosis
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C
Chameleon- Mimicry
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D
Taenia- Polymorphism
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Solution

The correct option is B Musca- Complete metamorphosis
Pheretima does not exhibit sexual dimorphism as there is no phenotypic difference between males and females of the same species.
The Musca or the housefly shows complete metamorphosis. Complete metamorphosis is the phenomenon in which the organism passes through all the four stages in the life cycle. The four distinct stages are as the egg, larval or maggot, pupal and adult stages. The adult lays the fertilized eggs and the egg hatches to form the larvae. The larvae develops into pupa and then the pupa is transformed to adult.
Chameleon exhibits the change of their skin coloration and pattern through a combinations of various colors.
Taenia does not exhibit polymorphism.
Thus, the correct answer is option B.

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