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101.

A man is the part of biotic community:

A.	Always	B.	Only when he lives in big cities
C.	Only when he lives in forest	D.	Never

102.

Which of the following terms is not a synonym literally for ecosystem?

A.	Ecosom	B.	Ecosphere
C.	Microcosm	D.	Holocoene

103.

The percentage of light energy utilized for photosynthesis by higher plants is:

A.	100	B.	50
C.	10	D.	1

104.

The term reducer is applied to:

A.	Decomposers	B.	Detrivores
C.	Both (a) & (b)	D.	Heterotrophs

105.

The primary consumers are described as:

A.	Herbivores	B.	Converters
C.	Transducers	D.	All of these

106.

The ration of food energy assimilated to the food energy ingested is called:

A.	Trophic level efficiency	B.	Photosynthetic efficiency
C.	Net production efficiency	D.	Assimilation efficiency

107.

The ecosystem lying in the alpine zone between taiga and polar ice is called:

A.	Savana	B.	Autotrophic
C.	Heterotrophic	D.	Tundra

108.

Which of the following is the smallest unit?

A.	Biosphere	B.	Ecosphere
C.	Ecosystem	D.	Biome

109.

In a stabilized ecosystem the P/R ratio is:

A.	One	B.	Less than one
C.	More than one	D.	Any of these

110.

According to Odum, the percentage of net primary production of total light intake is:

A.	10%	B.	0.15%
C.	1%	D.	1.50%