NEET Biology question

All mammals without any exception are characterized by

(A)Viviparity and biconcave red blood cells
(B)Extra-abdominal testes and a 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-secreting mammary glands. Monotremes are oviparous, not viviparous; some mammals lack

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-106442