First slide
Classification of Animals
Question

Which of the following correctly represents a unique character of the given taxon?

Moderate
Solution

Presence of hair is unique to mammals. Wings are present not only in birds but also some other animals (e.g., insects). Flame cells are not unique to Platyhelminthes. They are also present in some other animals (e.g., rotifers). Scales are present in reptiles and birds also.

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