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31.

Malpighian body in the vertebrates is associated with:

A.	Nerve impulse propagation	B.	Absorption of food in the intestine
C.	Excretion by kidneys	D.	None of these

32.

Kidneys of rabbit differ with that of frog in one of the following respects:

A.	Having been differentiated into cortex and medulla	B.	Having differentiation of cortex, medulla and being formed by metanephros
C.	Having been formed by metanephros	D.	None of these

33.

Which of the following parts in mammalian kidney has pyramidal area:

A.	Cortex	B.	Medulla
C.	Pelvis	D.	Malpighian body

34.

One of the difference in excretory system of frog and rabbit is that:

A.	The ureters open directly into urinary bladder and not in cloaca	B.	The urinary bladder opens into urethra and not in cloaca
C.	Both (a) & (b)	D.	None of these

35.

Urinary bladder in frog opens:

A.	Directly into urethra wherefrom it opens to outside	B.	Directly into cloaca
C.	Independently outside the body through some pore	D.	Into genital ducts wherefrom it opens to outside

36.

Parthenogenesis is the condition when:

A.	Egg is fertilized by a sperm	B.	Egg is fertilized artificially
C.	Egg undergoes cleavage without fertilization	D.	Sperm dies before fertilization

37.

Animals giving bieth to young ones are called:

A.	Oviparous	B.	Ovoviparous
C.	Viviparous	D.	Triploblastic

38.

The animals showing viviparity include:

A.	Whales	B.	Turtles
C.	Bony fishes	D.	Running birds

39.

One of these sets includes exclusively viviparous animals:

A.	Monkey, ape and man	B.	Elephant, whale and sea-lion
C.	Dig, cat and goat	D.	All of these

40.

Testes in some mammals descend into scrotal sacs for

A.	Regulation of moisture contents	B.	Getting more nourishment
C.	Regulation of reproductive cycle	D.	Regulation of temperature required for spermatogenesis