Give three important feature of mammals
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Mammals have four limbs and produce amniotic eggs. The mammal class is defined by the presence of mammary glands and hair (or fur). Other traits of mammals include sweat glands in their skin, alveoli in their lungs, a four-chambered heart, and a brain covering called the neocortex.
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Characteristics features of mammals:
(1) Body is covered with hair.
(2) Skin is provided with sweat and sebaceous glands.
(3) Heart is four chambered.
(4) Fertilization is internal.
(5) Females have mammary glands to produce milk to nourish their young ones.
(6) External ear-pinna present.
(7) Eyes have eye lids.
(8) Warm-blooded.
(9) Respiration through lungs.
(10) Body cavity divided into thorax and abdomen by muscular diaphragm.
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