41.Among the following sets of salient features, which set does not exclusively characterize mammals? [A] Presence of sweat glands, hairs on skin and diphyodonts [B] Presence of mammary glands, sweat glands and diaphragm [C] Presence of mammary glands, sweat glands and diaphragm [D] Presence of mammary glands, hairs on skin and diaphragm Show Answer
Answer (d). Apart from mammals, birds are also warm blooded and have 4 chambered heart.
