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NEET Biology MCQ
Organisms And The Environment Mcq
Quiz 9
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Q.1
Fungal association of roots of higher plants in mycorrhiza is .... .... [Pb.P.M.T. 1998]
0%
a) Parasitism
0%
b) Hyperparasitism
0%
c) Mutualism
0%
d) Commensalism
Explanation
Answer : (c)
Q.2
Soil transport by air is .... .... [B.H.U2006]
0%
a) Alluvial
0%
b) Colluvial
0%
c) Laterite soil
0%
d) Eolian
Explanation
Answer : (d)
Q.3
A population growing in a habitat with limited resources shows four phases in the following sequences .... .... [D.P.M.T 2011]
0%
a) Acceleration → Deceleration → Lag phase → Asymptote
0%
b) Asymptote → Acceleration → Deceleration → Lag phase
0%
c) Lag phase → Acceleration → Deceleration → Asymptote
0%
d) Acceleration → Lag phase → Deceleration → Asymptote
Explanation
Answer : (c)
Q.4
Eichhornia crassipes is .... .... [M.P.P.M.T.1996]
0%
a) Xerophytes
0%
b) Hydrophytes
0%
c) Mesophyte
0%
d) Parasite
Explanation
Answer : (b)
Q.5
Which is appropriately defined ..... ..... [C.B.S.E. 2010]
0%
a) host is an organism which provides food to another organisms
0%
b) Amensalism is relationship in which one species is benefitted while the other is unaffected
0%
c) Predator is an organism that catches and kills other organism for food
0%
d) Parasite is an organism which always lives inside the body of other organisms and may kill it
Explanation
Answer : (c)
Q.6
A community, which starts succession in a habitat is .... .... [Manipal 1997]
0%
a) Pioneer community
0%
b) Seral community
0%
c) Biotic community
0%
d) Ecosere
Explanation
Answer : (a)
Q.7
Population growth is indicated by .... ..... [M.P.P.M.T. 2012]
0%
a) Emigration
0%
b) Mortality
0%
c) Natality
0%
d) All the above
Explanation
Answer : (d)
Q.8
Killing an organisms for feeding is ..... ..... [A.F.M.C. 2003]
0%
a) Predation
0%
b) Parasitism
0%
c) Symbiosis
0%
d) Exploitation
Explanation
Answer : (a)
Q.9
Functional aspect of a species with references to its place of occurrence is .... .... [Odisha 2006]
0%
a) Ecology
0%
b) Ecological niche
0%
c) Species
0%
d) Environment
Explanation
Answer : (b)
Q.10
Which is not a primary coloniser? .... .... [Pb.P.M.T.1998]
0%
a) Viruses
0%
b) Lichens
0%
c) Blue-green algae
0%
d) Mosses
Explanation
Answer : (a)
Q.11
River water deposits: .... .... [M.P.P.M.T.1992]
0%
a) Loamy soil
0%
b) Alluvial soil
0%
c) Laterite soil
0%
d) Edaphic climax
Explanation
Answer : (b)
Q.12
Least porous soil is .... .... [Har.P.M.T.2002]
0%
a) Clay soil
0%
b) Sandy soil
0%
c) Loam soil
0%
d) Gravelly soil
Explanation
Answer : (a)
Q.13
A phenomenon when parasite parasitism another parasite is .... .... [D.P.M.T.2010]
0%
a) Hyperparasitism
0%
b) Parasitoids
0%
c) Monoxenous parasitism
0%
d) Polyxenous parasitism
Explanation
Answer : (a)
Q.14
Study of inter-relationships between a species/individual and environment in all stages of its life cycle .... .... [A.M.U.1991]
0%
a) Synecology
0%
b) Forest Ecology
0%
c) Autecology
0%
d) Ecology
Explanation
Answer : (c)
Q.15
Match the columns .... .... [Kerala 2012]
Interaction
Example
predation
a.
Cuscuta
and hedge plants
commensalism
b.
Balanusand
and
Chthamalus
parasitism
c.
Cactus
and moth
competition
d. orchid and mango
0%
a) 1 - c, 2 - d, 3 - a, 4 - b
0%
b) 1 - d, 2 - c, 3 - b, 4 - a
0%
c) 1 - a, 2 - c, 3 - b, 4 - d
0%
d) 1 - c, 2 - d, 3 - b, 4 – a
Explanation
Answer : (a)
Q.16
Plant succession occurring in a sandy area is .... ..... [Odisha 2012]
0%
a) Psammosere
0%
b) Halosere
0%
c) Xerosere
0%
d) Hydrosere
Explanation
Answer : (a)
Q.17
Plants growing in dry habitat are .... .... [Bih.P.M.T.2004]
0%
a) Lithophytes
0%
b) Mesophytes
0%
c) Hydrophytes
0%
d) Xerophytes
Explanation
Answer : (d)
Q.18
Which is not true of hydrophytes ? .... .... [Odisha 2002]
0%
a) Poorly developed root system
0%
b) Thin membranous leaves
0%
c) Poorly developed large air space
0%
d) Poorly developed vascular bundles
Explanation
Answer:(c)
Q.19
Cacti storing water in leaves are .... .... [Odisha 2008]
0%
a) Ephemerals
0%
b) Drought resistant
0%
c) Annuals
0%
d) Non-succulents
Explanation
Answer : (b)
Q.20
Mutualism occurs between .... .... [A.I.I.M.S. 2001]
0%
a) Butterfly and flower
0%
b) Escherichia coli and man
0%
c) Zoochlorellae and Hydra
0%
d) Hermit crab and sea anemone
Explanation
Answer : (c)
Q.21
Which is a population .... .... [W.B.2012]
0%
a) Spider and trapped flies in its web
0%
b) All plants in a forest
0%
c) Earthworms that lives in grasslands along with arthropods
0%
d) All the oak trees in a forest
Explanation
Answer : (d)
Q.22
One species is harmed whereas the other is unaffected. Such type of interaction is called .... .... [H.P.P.M.T.2012]
0%
a) Commensalism
0%
b) Amensalism
0%
c) Parasitism
0%
d) Predation
Explanation
Answer : (b)
Q.23
Match the columns .... .... [Kerala 2006]
a. mutualism
tiger and deer
b. commensalism
cuscuta
on
cissus
c. parasitism
suckerfish
and
shark
d. predation
crab and sea anemone
0%
a) a - 4, b - 3, c - 2, d - 1
0%
b) a - 1, b - 2, c - 3, d - 4
0%
c) a - 1, b - 3, c - 2, d - 4
0%
d) a - 2, b - 3, c - 1, d – 4
Explanation
Answer:(a)
Q.24
Population density of terrestrial organisms is measured in terms of individual per .... .... [K.C.E.T. 2007]
0%
a) Metre
0%
b) Metre2
0%
c) Metre3
0%
d) Metre4
Explanation
Answer : (b)
Q.25
In Mullerian mimicry, the mimic is .... .... [D.P.M.T. 2005]
0%
a) Harmless but resembles an obnoxious model
0%
b) Harmless but resembles the background
0%
c) Harmful but resembles a non-toxic model
0%
d) Harmful and resembles a model which is also harmful to predator
Explanation
Answer : (d)
Q.26
Which one is true? .... ..... [C.B.S.E 1991]
0%
a) Commensalism when none of the interacting population affect each other
0%
b) Symbiosis when the interaction is useful to both the populations
0%
c) Symbiosis when neither populations affects each other
0%
d) Commensalism when the interaction is useful to both the population
Explanation
Answer : (b)
Q.27
A plant living for a few days is .... .... [Odisha 2004]
0%
a) Annual
0%
b) Ephemeral
0%
c) Biennial
0%
d) Perennial
Explanation
Answer : (b)
Q.28
Soil water available to roots is .... .... [C.B.S.E.1991]
0%
a) Surface water
0%
b) Hygroscopic water
0%
c) Gravitational water
0%
d) Capillary water
Explanation
Answer : (d)
Q.29
Amount of fresh water present as polar and glacial ice is ..... ..... [Kerala 2008]
0%
a) 0.5%
0%
b) 1.97%
0%
c) 0.02%
0%
d) 0.01%
Explanation
Answer : (b)
Q.30
Relationships between two organisms in which one obtains some benefit at the cost of other is .... .... [A.F.M.C.2002]
0%
a) Parasitism
0%
b) Predation
0%
c) Symbiosis
0%
d) Scavenging
Explanation
parasitism is a symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life. Predation is a biological interaction where one organism, the predator, kills and eats another organism, In biology, symbiosis refers to a close, long-term interaction between two different species. Scavengers are animals that consume dead organisms that have died from causes other than predation. Answer : (a)
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