Question
Biology Question on Kingdom Animalia
Hair occur in all mammals except those of
A
rodentia
B
chiroptera
C
primata
D
cetacea.
Answer
cetacea.
Explanation
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.