Which of the following animals is an example of class Mammalia?
A
Manis - the scaly anteaters
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B
Planorbis - the freshwater snails
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C
Hydrophis - the sea snakes
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D
Psittacula - the Afro-Asian ring-necked parrots
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Solution
The correct option is B Manis - the scaly anteaters
The scales of Manis (pangolins or scaly anteaters) closely resemble those of reptiles, but actually, they are mammals. They are the only mammals that are completely covered in scales and they use those scales to protect themselves from predators in the wild.
Like platypuses and echidnas, they lay eggs and babies are nourished by their mothers' milk.
Whereas Planorbis belong to the class of Mollusca, Hydrophis belong to the class of Reptilia and Psittacula belong to the class of Aves.