Which characteristics are found exclusively in mammals?

  • A
    Pinna,Teeth
  • B
    Hair,Oviparous
  • C
    Mammary glands
  • D
    Hair,Mammary glands

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Assertion : The duck-billed Platypus and the spiny ant-eater,both are egg-laying animals yet they are grouped under mammals.
Reason : Both of them have seven cervical vertebrae and $12$ pairs of cranial nerves.

Which of the following animals have nuclei in their mature blood corpuscle cells?

Which animals possess a radar system to locate objects in the dark?

Which of the following is an order of the class $Mammalia$?

Which of the following are viviparous animals?

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