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Neet Biology Ecosystem Mcq
Quiz 10
Solution
Q.1.
Bacteria and fungi are .... .... [C.P.M.T.2003]
0%
a) Scavengers
33%
b) Primary consumers
0%
c) Secondary consumers
67%
d) Decomposers
Q.2.
Pseudomonas is an important component of nitrogen cycle. It .... ....
100%
a) Fixes elemental nitrogen
0%
b) Produces elemental nitrogen
0%
c) Transfers nitrogen
0%
d) Changes ammonium nitrogen to nitrate state
Q.3.
The trophic level of herbivores animal is ..... ..... [Pb.P.M.T.2003]
33%
a) First
67%
b) Second
0%
c) Third
0%
d) intermediate
Q.4.
Ultimate source of energy for living beings is .... .... [C.P.M.T.2001]
0%
a) Carbohydrates
0%
b) Fats
100%
c) Sunlight
0%
d) ATP
Q.5.
An ecosystem does not normally alter because it is an state of .... ..... [A.F.M.C.1997]
100%
a) Homeostasis
0%
b) Imbalance
0%
c) Deficient light
0%
d) Deficient components
Q.6.
An ecosystem contains .... .... [D.P.M.T.1999]
0%
a) Producers
0%
b) Consumers
0%
c) decomposers
100%
d) All the above
Q.7.
The pyramid which cannot be inverted in a stable ecosystems is that of .... ..... [B.H.U.2008]
0%
a) Biomass
0%
b) Number
67%
c) Energy
33%
d) All the above
Q.8.
Rate of storage of organic matter not used by heterotrophs is termed as .... ....
0%
a) Net productivity
0%
b) Net primary productivity
33%
c) Gross primary productivity
67%
d) Secondary productivity
Q.9.
Pollution from animals excreta and organic waste from kitchen can most probably minimized by .... .... [A.I.I.MS. 2006]
0%
a) Storing the in underground storage tanks
0%
b) Using them producing biogas
67%
c) Vermiculture
33%
d) Using them directly as biofertilizers
Q.10.
Energy store at the consumer level is .... ..... [M.P.P.M.T.2001]
33%
a) Gross primary productivity
33%
b) net primary productivity
0%
c) Net productivity
33%
d) Secondary productivity
Q.11.
Choose the correct sequence .... ..... [Manipal 2002]
0%
a) Phytoplankton → fishes → zooplankton → crustaccean
33%
b) Zooplankton → phytoplankton → crustaccean → fishes
67%
c) Phytoplankton → zooplankton → crustaccean → fishes
0%
d) Fishes → crustaccean → phytoplankton → zooplankton
Q.12.
More than 70% of world’s fresh water is contained in .... .... [C.B.S.E 2005]
33%
a) Polar ice
0%
b) Antarctica
0%
c) Green land
67%
d) Glaciers and mountains
Q.13.
Best source of renewable energy is .... .... [M.P.P.M.T.1995]
0%
a) Cattle
0%
b) Petroleum
33%
c) Coal
67%
d) Trees
Q.14.
Minerals and metals are .... .... [C.B.S.E. 1992]
0%
a) Biodegradable resources
33%
b) Renewable
67%
c) Nonrenewable
0%
d) Renewable and nonrenewable resources
Q.15.
Relative to roots, the shoots are massive in plants of .... .... [C.P.M.T. 1992]
0%
a) Desert
0%
b) Moist temperature
33%
c) Tundra
67%
d) Moist tropical forests
Q.16.
Tip of an ecological pyramid is occupied by .... .... [M.P.P.M.T.1999]
67%
a) Predator
0%
b) herbivores
33%
c) Carnivores
0%
d) None
Q.17.
Tropical plants prosopis, acacia and capparis .... .... [C.B.S.E.1998]
0%
a) Evergreen forest
33%
b) Deciduous forest
0%
c) Grassland
67%
d) Thorn forest
Q.18.
In ecosystem, cycling of nutrients is called .... ... [A.M.U.2010]
0%
a) Geological cycle
100%
b) Biogeochemical cycle
0%
c) Geochemical cycle
0%
d) Chemical cycle
Q.19.
Supply of oxygen to biogas plant will cause
33%
a) Positive effect
67%
b) Negative effect
0%
c) No effect
0%
d) None
Q.20.
Frog feeding on herbivorous insect is ..... ..... [C.B.S.E.2000]
33%
a) Primary consumer
67%
b) Secondary consumer
0%
c) Tertiary consumer
0%
d) Top carnivore
Q.21.
Afforestation in relation to urban development is component of .... .... [Pb .PM.T. 2000]
0%
a) Social forestry
67%
b) Integrated forest development
33%
c) Agroforestry
0%
d) Fuel forestry
Q.22.
Highest value in g/m2/yr of a grassland ecosystem would be .... .... [C.B.S.E.2004]
67%
a) Gross primary production
0%
b) ssNet primary production
0%
c) Secondary production
33%
d) Tertiary production
Q.23.
Pyrolysis of wood occurs in .... .... [M.H.T.C.E.T.2007]
0%
a) Presence of air
67%
b) Absence of air
33%
c) Limited supply of air
0%
d) Both B and C
Q.24.
Major fuel content of biogas is .... .... [C.B.S.E. 2004]
0%
a) CO
33%
b) CO2
67%
c) CH4
0%
d) CH3
Q.25.
The forest that colours in autumn is .... ..... [C.P.M.T.1992]
33%
a) Temperate evergreen forest
33%
b) Temperate deciduous forest
0%
c) Tropical evergreen forest
33%
d) Tropical deciduous forest
Q.26.
which is not recycled in ecosystem .... ..... [B.H.U. 2012]
33%
a) Nitrogen
33%
b) Water
33%
c) Energy
0%
d) Oxygen
Q.27.
Types of food chains are .... .... [M.P.P.M.T.2001]
0%
a) Four
33%
b) Three
67%
c) Two
0%
d) Six
Q.28.
Biodiesel is got from .... .... [Odisha 2006]
0%
a) Cedrus
67%
b) Jatropha biloba
33%
c) Jatropha curcas
0%
d) None
Q.29.
Wildlife (Protection) Act of India was enacted in .... .... [Odisha 2003]
0%
a) 1952
0%
b) 1962
100%
c) 1972
0%
d) 1982
Q.30.
Food chain in which microorganisms breakdown the food formed by primary producers is ..... ..... [C.B.S.E.1991]
0%
a) Parasitic food chain
67%
b) Detritus food chain
33%
c) Consumer food chain
0%
d) Predator food chain
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