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  4. Hair occur in all mammals except those of

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Q. Hair occur in all mammals except those of

AIPMTAIPMT 1988Animal Kingdom

Solution:

Order cetacea includes whales, dolphins and porpoises. These are the most highly modified mammals. They have a fish-like body with smooth, hairless skin devoid of sweat and oil glands, far posterior nares, small eyes, minute ear openings without pinnae, paddle-like forelimbs, no hindlimbs, abdominal testes and flattened tail ending in two horizontal flaps or flukes.