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Question
Which of the following is an egg-laying mammal?
Which of the following is an egg-laying mammal?
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Solution
The correct option is A Duck-billed platypus
Duck-billed platypus are egg-laying organisms. They are placed under the group of mammals because they possess skin with hair which provides protection and sweat gland which helps in the regulation of the body temperature and ionic balance. They possess milk-producing mammary glands which produce milk for the nourishment of the newborn. They show presence of seven cervical vertebrae and 12 pairs of cranial nerves like all other mammals. Thus, the correct answer is option A.
Duck-billed platypus are egg-laying organisms. They are placed under the group of mammals because they possess skin with hair which provides protection and sweat gland which helps in the regulation of the body temperature and ionic balance. They possess milk-producing mammary glands which produce milk for the nourishment of the newborn. They show presence of seven cervical vertebrae and 12 pairs of cranial nerves like all other mammals.
Thus, the correct answer is option A.
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