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easyMCQNEET 20232026Biology
1 mark

The unique mammalian characteristics are:

  1. A
    Hairs, lymphatic membrane and mammary gland
  2. B
    hairs, pinna and mammary glands
  3. C
    hairs, pinna and indirect development
  4. D
    pinna, monocondylic skull and mammary glands

Solution & Step-by-step Explanation

Mammals are distinguished by the presence of mammary glands (to feed young), body hair, and external ears (pinna). They also have a dicondylic skull and direct development.

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The unique mammalian characteristics are:
A
Hairs, lymphatic membrane and mammary gland
B
hairs, pinna and mammary glands
C
hairs, pinna and indirect development
D
pinna, monocondylic skull and mammary glands

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