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Byju's Answer
Standard XII
Biology
Class Aves
In which of t...
Question
In which of the following groups contain oviparous mammals?
A
Prototheria
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B
Metatheria
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C
Eutheria
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D
Theria
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Solution
The correct option is
A
Prototheria
Oviparous animals are the egg-laying animals which show little or no embryonic development within the mother.
This type of reproductive method is common in most fish, amphibians, reptiles, birds and prototherians.
Prototherians are egg-laying mammals and feed their newborn like all other mammals.
They lack nipples but the skin over their mammary glands secrete milk for their babies.
They are called monotreme as they have only one opening for excretion and reproduction.
So, the correct answer is 'Prototheria'.
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