All the living organisms on the earth interacting with atmosphere constitute:
A.Biosphere
B.Community
C.Biome
D.Association
Category: Agriculture Ecology and General Silviculture Mcqs
Which one of the following terms does not reflect the idea of ecosystem:
A.Holocoene
B.Cherposem
C.Biosystem
D.Geobiocoenosis
The number of producers and consumers in an ecosystem is mutually controlled by a:
A.Productivity control
B.Food chain mechanism
C.Feed back mechanism
D.Any of these
Pond is an example of:
A.Artificial ecosystem
B.Forest ecosystem
C.Natural ecosystem
D.Grassland ecosystem
If precise quantitative measurements are made on a convined ecosystem in a laboratory, we will find amounts of which of the following to be a one-way flow rather than cyclic?
A.Carbon
B.Potassium
C.Nitrogen
D.Free energy
The trophic structure in an ecosystem is infact:
A.Producer-consumer arrangement
B.Refers to grazing food chain only
C.Never forms a food web
D.Never photosynthesis dependent
The pyramid of energy is always:
A.Inverted
B.Upright
C.Both of these/Horizontal
D.Inverted in forest ecosystem
The two major functional components of an ecosystem are:
A.Energy flow and food chain
B.Mineral recycling and energy flow
C.Food chain and decomposers
D.Energy flow and decomposers
A plant, being eaten by a herbivore which in turn is eaten by a carnivore, makes a:
A.Food chain
B.Web of food
C.Biomass
D.Interdependence
The first fish that eats upon the planktonic forms is:
A.Primary consumer
B.Carnivore
C.Decomposer
D.Secondary consumer
