237
Question
The scrotum is absent in organisms belonging to which infraclass of class mammalia?
The scrotum is absent in organisms belonging to which infraclass of class mammalia?
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Solution
The correct option is D Prototheria
A. Eutherians are called placental mammals, in which the mothers carry their unborn.- In them, the scrotum is present behind the penis.
B. Metatherians are also called marsupials or pouched mammals, the young are born immature and for further development takes place in mothers pouch. in the mother's pouch. - In them, the scrotum is present in front of the penis.
C. Prototherians are called egg-laying mammals.- In them scrotum is absent.
- So, the correct answer is 'Prototheria'.
A. Eutherians are called placental mammals, in which the mothers carry their unborn.
- In them, the scrotum is present behind the penis.
B. Metatherians are also called marsupials or pouched mammals, the young are born immature and for further development takes place in mothers pouch. in the mother's pouch.
- In them, the scrotum is present in front of the penis.
C. Prototherians are called egg-laying mammals.
- In them scrotum is absent.
- So, the correct answer is 'Prototheria'.
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