TNPSC Zoology Study Material in English Tamil Pdf - 2

Question: 6

Number of milk teeth in man is

(A) 18

(B) 20

(C) 22

(D) 24

Question: 7

Cretinism is caused due to the

(A) Under activity of pituitary

(B) Over activity of pituitary

(C) Under activity of thyroid

(D) Over activity of thyroid

Question: 8

Viral zoonoses

(A) Kalaazar

(B) Malaria

(C) Rabies

(D) Plague

Question: 9

In crocodile, the skin is covered by

(A) Beaks

(B) Hairs

(C) Bony scales

(D) Hooves