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Mammalia

Which of the ...

Question

Which of the follwoing is false statement for prototherians?

A

Corpus callosum is absent

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B

Testes are found on scortal sacs

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C

Mammary glands are without nipples

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D

Egg-laying and burrowing animals

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Solution

The correct option is B Testes are found on scortal sacs
Corpus callosum is absent in prototherians.
Testes are intra-abdominal and not present in scrotal sacs in prototherians.
They lack nipples, but the skin over their mammary glands exude milk for their babies.
The subclass Prototheria contains the egg-laying mammals and burrowing mammals. These burrows are a defense against predators as well as a great place to lay their leathery eggs. Hence, option B is correct.

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