An exclusive mammalian feature is:

Mammary gland

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Four-chambered heart

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Warm-blooded

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All of the above

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Solution

The correct option is A Mammary gland
Mammalians are characterized by the presence of mammary glands and body hair. Mammals are mostly viviparous animals.
Both birds and mammals are warm-blooded and have four-chambered hearts.
So, the correct answer is option A.

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Similar questions

Q. An exclusive mammalian trait is

Q. Which of the following is are the exclusive feature of mammal? (not found in any other animal group)
(a) Diaphragm
(b) Seven cervical vertebrate
(c) Mammary glands
(d) Gives birth to young ones
(e) Non nucleated RBC
(f) Pinna
(g) Corpus callosum in brain.

Q. In the developmental history of mammalian heart, it is observed that is passes through a two chambered fish like heart, three chambered frog like heart and finally four chambered stage.
To which hypothesis can this above cited statement be approximated?

Q. Which of the following is NOT a characteristic feature of the mammary gland?

In the developmental history of mammalian heart, it is observed that it passes through a two-chambered fish like heart, three-chambered frog-like heart and finally four-chambered stage. To which hypothesis can this above cited statement be approximated?

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An exclusive mammalian feature is:

The correct option is A Mammary glandMammalians are characterized by the presence of mammary glands and body hair. Mammals are mostly viviparous animals.Both birds and mammals are warm-blooded and have four-chambered hearts.So, the correct answer is option A.

The correct option is A Mammary gland
Mammalians are characterized by the presence of mammary glands and body hair. Mammals are mostly viviparous animals.
Both birds and mammals are warm-blooded and have four-chambered hearts.
So, the correct answer is option A.