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31.

Life originated during:

A.	Pre-cambrian period	B.	Mesozoic era
C.	Coenozoic era	D.	Proterozoic era

32.

Which of the following theories of origin of life was contradicted by experiment of Louis-Pasteur:

A.	Theory of special creation	B.	Cosmozoic theory
C.	Biogenesis	D.	Abiogenesis

33.

Experiments of Spallazani and Pasteur lead to the conclusion that:

A.	Air is essential for biogenesis	B.	Air is not essential for biogenesis
C.	The air went out of the jars and carried micro-organisms with it	D.	It was merely a chance

34.

Louis-Pasteur succeeded in disproving the spontaneous generation theory because:

A.	He was lucky enough	B.	He was ingenious in crawing out necks of glass flasks so as to provide access to air but not to micro-organisms
C.	Air must have gone out through holes of corks and must have carried the micro-organisms along with it	D.	Of the fact that the yeast sample taken by him was dead

35.

Instruments in the hospital are boiled prior to surgery in order to make them:

A.	Clean for use	B.	Sterilized
C.	Immunized	D.	Pasteurised

36.

Moon is:

A.	A planet	B.	Satellite of Earth
C.	Both of these	D.	None of these

37.

There is no life on Moon because there is deficiency of:

A.	Carbon	B.	Hydrogen
C.	Nitrogen	D.	Water

38.

Why is it must to boil the instruments in hospitals before surgery:

A.	To kill all pathogene present at the site of operation in the patient's body	B.	To kill all the pathogene which may be infecting the insturment
C.	To facilitate the handling of instruments	D.	To enable the patient to feel warm during operation

39.

The organism having characteristics of both living and non-living are:

A.	Bacteria	B.	Monera
C.	Viruses	D.	None of these

40.

True nucleus is not present in:

A.	Fungi	B.	Green Algae
C.	Viruses	D.	Lichens