MP PMT 1993
Q176
Errorless
Ecosystem
MCQ
In forest ecosystem, pyramid of number is
A.
Upright
B.
Inverted
C.
Any of the two
D.
None of the above
RPMT 1992
Q177
Errorless
Ecosystem
MCQ
What is maximum in a pond-ecosystem
A.
Primary consumers
B.
Secondary consumers
C.
Producers
D.
Decomposers
CBSE PMT 1991
Q178
Errorless
Ecosystem
MCQ
Which of the following is correct sequence in food chain
A.
Fallen leaves → bacteria → insect larvae → birds
B.
Phytoplankton → zooplankton → fish
C.
Grasses → fox → rabbit
D.
Grasses → chameleon → insects → birds
Q179
Allen
(Conceptual Questions)
MCQ
Ecosystem term coined by :-
A.
Odum
B.
Mishra
C.
Reiter
D.
Tansley
Q180
Allen
(Conceptual Questions)
MCQ
Which one is not a functional aspect of ecosystem?
A.
Energy flow
B.
Productivity
C.
Decomposition
D.
Stratification
Q181
Allen
(Conceptual Questions)
MCQ
The minimum energy is stored at which of the following trophic level in any ecosystem
A.
Carnivores
B.
Herbivores
C.
Producers
D.
Decomposers
Q182
Allen
(Conceptual Questions)
MCQ
The source of energy in an ecosystem is :-
A.
Sunlight
B.
DNA
C.
ATP
D.
RNA
Q183
Allen
(Conceptual Questions)
MCQ
Ecosystem may be defined as :-
A.
A localized association of several plants and animals
B.
Different communities of plants, animals and microbes together with their physico-chemical environment.
C.
Different communities of plants and microbes along with their physicochemical environment
D.
None of the above
Q184
Allen
(Conceptual Questions)
MCQ
The importance of ecosystem lies in: -
A.
Flow of energy
B.
Cycling of materials
C.
Both the above
D.
None of the above
Q185
Allen
(Conceptual Questions)
MCQ
Ecosystem is:-
A.
Any functional unit that includes the whole community in a given area interacting with the abiotic factors
B.
A group of green plants
C.
A group of animals interacting with environment
D.
Man and pets living together
Q186
Allen
(Conceptual Questions)
MCQ
Who proposed that ecosystem is symbol of structure & function of nature :-
A.
Gardner
B.
Odum
C.
Tansley
D.
Reiter
Q187
Allen
(Conceptual Questions)
MCQ
Largest ecosystem of the world are: -
A.
Forests
B.
Grass lands
C.
Great lakes
D.
Oceans
Q188
Allen
(Conceptual Questions)
MCQ
Which of the following is a manmade artificial ecosystem?
A.
Grassland ecosystem
B.
Forest ecosystem
C.
Ecosystem of artificial lakes & dams
D.
None of these
Q189
Allen
(Conceptual Questions)
MCQ
Nepenthes (Insectivorous pitcher plant) is:
A.
Producer
B.
Consumer
C.
Both (1) & (2)
D.
None of these
Q190
Allen
(Conceptual Questions)
MCQ
Which one is omnivorous?
A.
Cow
B.
Lion
C.
Deer
D.
Man
Q191
Allen
(Conceptual Questions)
MCQ
Which biotic components mainly help in recycling of minerals?
A.
Producers
B.
Consumers
C.
Decomposers
D.
All the above
Q192
Allen
(Conceptual Questions)
MCQ
Trophic levels are formed by :-
A.
Only plants
B.
Only carnivores
C.
Only animals
D.
Organisms linked in food chain
Q193
Allen
(Conceptual Questions)
MCQ
In a forest ecosystem green plants are :-
A.
Primary producers
B.
Consumers
C.
Primary consumers
D.
Decomposers
Q194
Allen
(Conceptual Questions)
MCQ
In an ecosystem the function of the producers is to :-
A.
Convert organic compounds into inorganic compounds
B.
Trap solar energy and convert it into chemical energy
C.
Utilize chemical energy
D.
Release energy
Q195
Allen
(Conceptual Questions)
MCQ
With regard to ecological food chain, man is a :-
A.
Consumer
B.
Producer
C.
Both consumer & producer
D.
Decomposer
Q196
Allen
(Conceptual Questions)
MCQ
A plant, being eaten by a herbivore which in turn is eaten by a carnivore makes :-
A.
Food chain
B.
Web of Food
C.
Omnivores
D.
Interdependence
Q197
Allen
(Conceptual Questions)
MCQ
When peacock, eats snake which eats insects depends on green plants, the peacock is?
A.
A primary consumer
B.
A primary decomposer
C.
A final decomposer of plants
D.
The apex of the food pyramid
Q198
Allen
(Conceptual Questions)
MCQ
If we completely remove decomposers from an ecosystem, the ecosystem functioning will be adversely affected because: -
A.
Mineral movement will be blocked
B.
Herbivores will not receive solar energy
C.
Energy flow will be blocked
D.
Rate of decomposition of other components will be very high
Q199
Allen
(Conceptual Questions)
MCQ
Path of energy flow in an ecosystem is :-
A.
Herbivorous → producer →
carnivorous → decomposer
carnivorous → decomposer
B.
Herbivorous → carnivorous →
producer → decomposer
producer → decomposer
C.
Producer → carnivorous →
herbivorous → decomposer
herbivorous → decomposer
D.
Producer → herbivorous →
carnivorous → decomposer
carnivorous → decomposer
Q200
Allen
(Conceptual Questions)
MCQ
Pyramids of energy are :-
A.
Always upright
B.
Always Inverted
C.
Mostly upright
D.
Mostly inverted