Question

Which of these does not hold true for mammals?
[A] All Have a Backbone
[B] All have hair at some stage
[C] All Females have mammary gland
[D] All females give birth to live young

Answer 1

option(d) is correct answer because duck billed platypus is the only the mamal who is egg laying mamal

Answer 2

Answer:

Answer (D)::::::::::::::::::::::::::::::::'''''''''':