Answer:
Vivipary is the process of giving birth to young ones.
Some general features of mammals are as follows
(i) Body is divisible into head, ''neck", 'trunk
and-tail. Movable eyelids are present.
(ii) Respiration takes place through lungs only.
(iii) Fleshy external ear (pinnae) is present. Middle ear is with three
ossicles (malleus, incus and stapes).
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