start any two characteristics of mammals. name two egg laying mammals
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Characteristics of Class Mammalia:
a. Mammals are warm blooded animals.
b. They have four chambered heart.
c. They have mammary glands for production of milk.
d. The skin of mammals has hairs as well as sweat and oil glands.
Platypus and Echidna are egg laying mammals.
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two characteristics, of mammals are=mammals are viviparus, and mammals have mammary gland.two egg laying, mammals are =platypus and dolphin.
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