NEET Biology question

All mammals without any exception are characterized by

(A)Viviparity and biconcave red blood cell
(B)Extra abdominal testes and four-chambered heart
(C)Heterodont teeth and 12 pairs of cranial nerves
(D)A muscular diaphragm and milk producing glandsCorrect

Answer: (D)

Solution

Every mammal, without exception, possesses a muscular diaphragm and milk-producing mammary glands. Monotremes lay eggs rather than being viviparous, some mammals (e.g., elephants, whales)

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-106437