43. Monotremes are unique mammals because they A.posses hair B.give birth to live young C.secret milk in a pouch D.lay eggs
Answer: Option D Solution: Monotremes are different from other mammals because they lay eggs and have no teats. Monotremes are different from other mammals because they lay eggs and have no teats. The milk is provided for their young by being secreted by many pores on the female's belly.
