39. Man belongs to the family:
a) Felidae
b) Hominidae
c) Mammalia
d) Primataceae
e) None of these.
40. Deficiency of vitamin C in human body causes a deficiency disease called:
a) Beriberi
b) Night blindness
c) Rickets
d) Scurvy
e) None of these.
41. To measure the specific gravity of milk, the instrument used is:
a) Hygrometer
b) Barometer
c) Lactometer
d) Hydrometer
e) None of these.
42. one of the fundamental characteristics of living organisms is:
a) Photosynthesis
b) Digestion
c) Excretion
d) Metabolism
e) None of these.