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221.

Ecological pyramids were discovered by:

A.	Elton	B.	Odum
C.	Reiter	D.	None of these

222.

An ecosystem which can be easily damaged but can recover after sometime if damaging effect stops will be having:

A.	High stability and low resilience	B.	Low stability and low resilience
C.	Low stability and high resilience	D.	High stability and high resillience

223.

The correct sequence of food chain is:

A.	Grass-insect-bird-snake	B.	Grass-bird-insect-snake
C.	Snake-bird-insect-grass	D.	Grass-snake-bird-insect

224.

Bacteria and fungi in a forest ecosystem are generally:

225.

Which of the following is expected to have the highest value (gm/m2/yr) in a grassland ecosystem?

A.	Tertiary Production	B.	Gross Production (GP)
C.	Net Production (NP)	D.	Secondary Production

226.

In a food chain, the total amount of living material is depicted by:

A.	Pyramid of biomass	B.	Pyramid of energy
C.	Pyramid of number	D.	Trophic levels

227.

Environmental factors in ecosystem:

A.	Abiotic factors	B.	Biotic factors
C.	Both (a) & (b)	D.	None of these

228.

Abiotic factors are:

A.	Climatic	B.	Edaphic factors
C.	Topography	D.	All of the above

229.

Branches of ecology are:

A.	Autecology	B.	Synecology
C.	Both (a) & (b)	D.	None of these

230.

Synecology can be subdivided into how many branches:

A.	Population ecology	B.	Community ecology
C.	Ecosystem ecology	D.	All of the above