Question 31. The rhesus factor of blood was first identified in a category of
(B) Human females
(C) Human males
Question 32. The division of the nucleus is known as
Question 33. In the mammal, the autonomic system consists of
(A) sympathetic and parasympathetic…[Read more]
Question 12. In bony fishes, the swim bladder is used for
(A) adjusting the weight of the fish when swimming at different levels.
(B) extracting oxygen from water which enters the mouth of the fish.
(C) equalizing fluid pressures between the fish and the surrounding water.
(D) absorbing more water when the fish is about to descend to a lower…[Read more]