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Neet Biology Ecosystem Mcq
Quiz 9
Solution
Q.1.
Sea weed belongs to trophic level .... .... [C.M.C.2002]
50%
a) Primary consumer
50%
b) Secondary consumer
0%
c) Decomposer
0%
d) Primary producer
Q.2.
Pedology refers to study of .... .... [J.K.C.M.E.E. 2011]
50%
a) Soil
0%
b) Population
50%
c) Fossils
0%
d) Water
Q.3.
Estuaries are highly productive as they are nutrient trap due to mixing of .... .... [D.P.M.T.2007]
50%
a) Ocean and pond
50%
b) Lake and river
0%
c) Pond and lake
0%
d) River and sea water
Q.4.
Mineral nodules present in ocean which can meet shortage of important soil nutrient are
0%
a) Manganese nodules
0%
b) Phosphorite nodules
0%
c) Magnesium nodules
0%
d) All of the above
Q.5.
Which one is sedimentary cycle? .... .... [H.P.P.M.T.2012]
0%
a) Oxygen cycle
0%
b) Nitrogen cycle
0%
c) Carbon cycle
0%
d) Phosphorus cycle
Q.6.
Match the items .... .... [K.C.E.T.1999]
a. grass
p. decomposer
b. grasshopper
q. secondary carnivore
c frog
r. producer
d. hawk
s. primary consumer
- - - -
t. primary carnivore
0%
a) a - r, b - p, c - t, d - s
0%
b) a - p, b - r, c - s, d - t
0%
c) a - r, b - t, c - s, d - q
0%
d) a - r, b - s, c - t, d – q
Q.7.
In an ecosystem, which one shows one-way passage .... .... [PbP.M.T.1999]
0%
a) Free energy
0%
b) Carbon
0%
c) Nitrogen
0%
d) Potassium
Q.8.
Taiga occurs in .... .... [A.F.M.C.2009]
0%
a) Tropical area
0%
b) Subtropical areas
0%
c) Arctic region
0%
d) North temperate area
Q.9.
Soil erosion is prevented by .... .... [D.P.M.T. 1999]
0%
a) Afforestation
0%
b) Increased bird population
0%
c) Overgrazing
0%
d) Removal of vegetation
Q.10.
Pick up the correct food chain .... ..... [C.B.S.E.1991]
0%
a) Grass → Chameleon → insect → bird
0%
b) Grass → fox → rabbit → bird
0%
c) Phytoplankton → zooplankton → fish
0%
d) Fallen leaves → bacteria → insect larvae
Q.11.
In upright pyramid of biomass, herbivores occupy the position .... .... [C.P.M.T.2000]
0%
a) 1
0%
b) 2
0%
c) 3
0%
d) 4
Q.12.
Biogas is combustive as it contains .... .... [B.H.U. 2005]
0%
a) CO2
0%
b) CH4
0%
c) H2
0%
d) H2S
Q.13.
Maximum number in pond/grass ecosystem is of .... ..... [Kerala 2007]
0%
a) Producers
0%
b) Consumers
0%
c) Top consumers
0%
d) Decomposers
Q.14.
Maximum productivity is shown by .... .... [M.P.P.M.T. 1988]
0%
a) Forests
0%
b) Aquatic ecosystems
0%
c) Deserts
0%
d) Grasslands
Q.15.
Tropical rain forest are found in .... .... [B.H.U. 1998]
0%
a) Andamans
0%
b) Bihar
0%
c) Himachal Pradesh
0%
d) Jammu and Kashmir
Q.16.
Lentic ecosystem occurs in .... .... [Pb.P.M.T.2007]
0%
a) Rain water
0%
b) Running water
0%
c) Standing water
0%
d) Gravitational water
Q.17.
Species diversity increases as one proceeds from .... .... [C.B.S.E.1994]
0%
a) High altitude to low altitude and high latitude to low latitude
0%
b) Low altitude to high altitude and high latitude to low latitude
0%
c) Low altitude to high altitude and low latitude to high latitude
0%
d) High altitude to high altitude and low latitude to high latitude
Q.18.
In which regions of the world are hot deserts located .... .... [ Guj .C.E.T. 2011]
0%
a) Equator and Tropic of Cancer
0%
b) Equator and Tropic of Capricorn
0%
c) Polar region
0%
d) Tropic of Cancer and Tropic of Capricorn
Q.19.
Largest amount of fresh water is found in .... .... [C.B.S.E. 1994]
0%
a) Lakes and streams
0%
b) Underground
0%
c) Polar ice and glaciers
0%
d) Rivers
Q.20.
Deserts, grasslands, forests and tundra are examples of .... .... [D.P.M.T. 2009]
0%
a) Biomes
0%
b) Ecosystems
0%
c) Biosphere
0%
d) Biogeographical regions
Q.21.
Great Barrier Reef along east coast of Australia is a .... .... [A.I.I.M.S.2008]
0%
a) Population
0%
b) Community
0%
c) Biome
0%
d) Ecosystem
Q.22.
Chewing gum is produced by .... .... [Odisha 2009]
0%
a) Prunus
0%
b) Achras sapota
0%
c) Cajanus
0%
d) Cocos
Q.23.
Value of a resources is dependent on its .... .... [A.I.I.M.S. 1989]
0%
a) Quality
0%
b) Quantity
0%
c) Requirement and type of society
0%
d) All
Q.24.
The wildlife act 1972 was first amended in .... .... [D.P.M.T. 2010]
0%
a) 1991
0%
b) 1995
0%
c) 2001
0%
d) 2007
Q.25.
Amount of nitrogen fixed electrochemically and photochemically is .... .... [Kerala2000]
0%
a) 140 mg/m2/yr
0%
b) 35 mg/m2/yr
0%
c) 15 mg/m2/yr
0%
d) 350 mg/m2/yr
Q.26.
Which is correct about GPP and NPP in ecosystem ..... .... [B.H.U. 2012]
0%
a) NPP = GPP - plant respiration
0%
b) NPP = GPP + Animal respiration
0%
c) NPP = GPP - Animal respiration
0%
d) NPP = GPP + plant respiration
Q.27.
In a food chain, the largest population is that of .... ..... [C.B.S.E.1994]
0%
a) Producers
0%
b) Decomposers
0%
c) Secondary consumers
0%
d) Primary consumers
Q.28.
Number of individuals decreases from producer level to consumer level in .... .... [J.K.C.M.E.E. 2010]
0%
a) Pyramid of numbers
0%
b) Pyramid of energy
0%
c) Pyramid of biomass
0%
d) None
Q.29.
Fuel wood crisis can be overcome by .... .... [E.A.M.C.E.T.1999]
0%
a) Better wooden stoves
0%
b) Efficient wood extraction
0%
c) Greater afforestation
0%
d) Using alternate energy source
Q.30.
Maximum energy amongst ecosystem is contributed by .... .... [C.E.T.Chd. 2009]
0%
a) Forests
0%
b) Crops
0%
c) Corals
0%
d) Fuel gas
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