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71.

During metamorphosis the intestine of tadpole shrinks:

A.	1/3rd in length	B.	2/3rd in length
C.	3/4 in length	D.	1/2 in length

72.

Which of these organs do not undergo any special change during metamorphosis:

A.	Respiratory	B.	Nervous
C.	Digestive	D.	Circulatory

73.

Development of Indian frog is completed in about:

A.	1/2 month	B.	1
C.	2	D.	3 - 4 months

74.

Egg in rabbit is:

A.	Microlecithal	B.	Mesolecithal
C.	Polylecithal	D.	Telolecithal

75.

Mammalian ovum has which of the following coverings around it:

A.	Zona pellucida	B.	Corona radiata
C.	Both of these	D.	None of these

76.

The fertilization in mammalian ovum occurs:

A.	Inside the body cavity	B.	Inside the fallopian tube
C.	Inside the uterus	D.	Inside the vagina

77.

Accomodation of trophoblastic villi into uterine wall in mammals marks the:

A.	Conception	B.	Ovulation
C.	Parturition	D.	None of these

78.

Trophoblast cells just above embryonal knob in mammalian blastocyst are called:

A.	Cells of Ranvier	B.	Cells of Rauber
C.	Cells of Malpighi	D.	None of these

79.

Actual embryo in mammals in formed by:

A.	Embryonal knob	B.	Hensen's knot
C.	Corona radiata	D.	None of these

80.

Endodermal cells in mammalian gastrula are formed by:

A.	Cells of inner surface of embryonal knob	B.	Cells of outer layer of embryonal knob
C.	Both of these structures	D.	None of these