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121.

From gross production of autotrophs, according to Lindemann, how much energy in gcal/cm2/year is used in respiration and decomposition respectively:

A.	78.2, 29.3	B.	78.2, 3.5
C.	29.3, 3.5	D.	23.9, 5.3

122.

Which of the following belong to the same trophic level?

A.	Yeast and Monotrapa	B.	Rhizopus and Riccia
C.	Ulothrix and Yeast	D.	All of these

123.

An ecosystem is a structure that is:

A.	Always temporary	B.	Always permanent
C.	Either of these	D.	Rarely permanent

124.

The ecological pyramids were first designed by:

A.	Clements	B.	Kormondy
C.	Warming	D.	Elton

125.

The solar radiations are the sole source of:

A.	Energy	B.	Materials
C.	Both (a) & (b)	D.	Standing state

126.

The pyramid of biomass in a parasitic ecosystem is:

A.	Upright	B.	Inverted
C.	Linear	D.	Rhomboidal

127.

The term omnivore is applied to:

A.	Herbivore and carnivore	B.	Carnivore and detrivore
C.	Herbivore and detrivore	D.	All of these

128.

The term homeostasis in an ecosystem refers to:

A.	A feed back mechanism	B.	A self-regulatory mechanism
C.	State of equilibrium	D.	Influence of production

129.

In a forest ecosystem, the numerical relationship between the producers and herbivores:

A.	Producers more than herbivores	B.	Producers equal to herbivores
C.	Producers less than herbivores	D.	Variable

130.

The gross production minus losses in an ecosystem is indicated as:

A.	Net production	B.	Secondary production
C.	Net storage	D.	Net primary production