The amount of living matter present in a component population of a particular trophic level is called:
A.Standing crop
B.Standing quality
C.Both (a) & (b)
D.Standing state
Category: Agriculture Ecology and General Silviculture Mcqs
The earth’s atmosphere in which organisms live, is called:
A.Ecosystem
B.Ecosom
C.Biosphere
D.Biocoenosis
What is contributed from the outer space in an ecosystem?
A.All the atmospheric gases
B.Only carbon, hydrogen and oxygen
C.Energy only
D.All the above components
In natural ecosystem, decomposers include:
A.Only bacteria and fungi
B.Only microscopic animals
C.The above two types of organisms plus mactoseopic animals
D.Only the above two types of organisms
The phytoplanktonic forms of plants are:
A.Insectivorous type
B.Heterotrophs
C.Chemotrophs
D.Autotrophs
The ecosystem exists in a state of ‘balance’. Supposing one of the heterotrophs, says the rabbit, multiplies and increases in number suddenly then:
A.The balance will be permanently upset because the rabbits will eat the grass in the system and die of starvation
B.The ‘balance’ will be restoredby an increase in the wolf population
C.Epidemics will break out in the rabbits and kill all of them
D.Rabbits will starts eating each other
In a fish aquarium green aquatic plants are grown primarily for:
A.Oxygen
B.Carbon dioxide
C.Fish feed
D.Decoration
The processes involving the transformation of carbon compounds on earth include:
A.Only the plants
B.Both biological and non-biological processes
C.Only the living organisms
D.Only the animals
In a forest ecosystem, green plants are:
A.The primary producers
B.Primary producers only sometimes
C.The decomposers
D.The consumers
A habitat of long severe winters and growing season limited to a few months of summer constitutes:
A.Savana ecosystem
B.Taiga ecosystem
C.Tundra ecosystem
D.None of the above
