Q.1.
Which of the following is not included as the climax community of general processof succession ?
-
21%
a) Sedge-meadow stage
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64%
b) phytoplanktones
-
7%
c) Forest
-
7%
d) Grassland
Q.2.
Darwinian fitness means:
-
10%
a) Maximise their reproductive fitness.
-
10%
b) Breed only once in life time.
-
40%
c) Large number of small sized organisms.
-
40%
d) Survival of the fittest.
Q.3.
In the logistic growth equation given below, the carrying capacity is represented by
-
25%
a) N
-
25%
b) r
-
25%
c) K
-
25%
d) K- N/K
Q.4.
A compound which is produced by an organism that inhibits grown organism is called
-
10%
a) xenobiotics
-
10%
b) antibiotics
-
70%
c) antibody
-
10%
d) interferon
Q.5.
Niche is defined as:
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56%
a) The position of species in a community in relation to other species.
-
0%
b) Place where an organism live.
-
22%
c) Small space where organism lives and performs its functions, range of tolerance.
-
22%
d) Place where population perform their duties.
Q.6.
From the given option which is the appropriate for ecto parasite animal Ascaris, Tapeworm, plasmodium, mites
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50%
a) phytoplanktons
-
12%
b) mesofauna
-
12%
c) macrofauna
-
25%
d) phytoplanktons and mesofauna.
Q.7.
which type of pyramid is true for the population having more number of pre reproductive and reproductive age group ? a = post reproductive age group b = reproductive age group c = pre reproductive age group
-
33%
-
44%
b)
-
11%
c)
-
11%
d) None of the above
Q.8.
Closely related species of warblers living on the same tree are example for:
-
14%
a) Intraspecific competition.
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71%
b) Gause’s competitive exclusion principles.
-
14%
c) Avoid competition and resource partitioning.
-
0%
d) Connell’s elegant field experiment.
Q.9.
At ‘t’ time, population density is ‘N’ and at t+1 time population density is Nt+1/If Nt+1 - Nt then find out the correct option
-
57%
a) B-D +I-E ≠ 0
-
29%
b) B-D+I-E = 0
-
14%
c) B+D-I+E +0
-
0%
d) B+D-I+E ≠ 0
Q.10.
A biologist studied the population of rats in a bran. He found that the average natality was 250, average mortality 240, immigration 20 and emigrationThe net increase in population is
-
14%
a)10
-
43%
b) 15
-
14%
c) 05
-
29%
d) zero
Q.11.
Read the following statements find number of correct statements: (i) Recent studies support competition as suggested in Gause’s competitive exclusion principle. (ii) Gause’s hypothesis says if two species compete for same resource then one will be eliminated by another species. (iii) More recent studies point out that species facing competition might evolve mechanisms that promote co – existence rather than exclusion. (iv) Gause’s competitive exclusion principle is effective when resources are in excess. (v) Unlimited resources give better opportunity for adaptation.
-
45%
a) (ii) and (iii).
-
27%
b) (i), (ii) and (iv).
-
18%
c) (iii), (iv) and (v).
-
9%
d) (i), (iv) and (v).
Q.12.
Y↔X having interspecific relations in which animal which is not affected is X shows excretory organs which are also seen in Y and is Z located in its gills then.... what are X,Y,Z - ?
-
40%
a) X = Termite Y = flagelates Z = Tentacles
-
0%
b) X = shank Y = Tortoise Z = Chlorine cell
-
40%
c) X = shank Y = fishZ = chlorine secreting cells
-
20%
d) All of these (above)
Q.13.
Resemblance of one organism to another for protection and hiding is
-
17%
a) mimicry
-
17%
b) predation
-
0%
c) adaptation
-
67%
d) camouflage
Q.14.
In cold blooded animals, the body temperature tends to match with the environmental temperature in which they live. They are also known as:
-
20%
a) Ectotherms.
-
0%
b) Endotherms.
-
0%
c) Warm blooded animals.
-
80%
d) Both (B) and (C).
Q.15.
Geometric representation of age structure is a characteristic of
-
60%
a) Biotic community
-
40%
b) Population
-
0%
c) Landscape
-
0%
d) Ecosystem
Q.16.
The process where a population inhibits the growth of other population without affecting itself is known as
-
17%
a) amensalism
-
0%
b) parasitism
-
33%
c) mutualism
-
50%
d) commensalism
Q.17.
Match the following:
| Column I (Biomes) | Column II (Appro.Rainfall Annually) |
| A. Evergreen tropical forst | 25-75 cm |
| B. Tropical deciduous forst | 50-75 cm |
| C. Taiga | 75 -150 cm |
| D. Temperate deciduous forest | 100-250 cm |
| E. Chaparral | 100-200 cm |
| F. Grassland and Savannah | 250-400 cm |
| G. Desert | Less than 25cm |
-
60%
a) a=1; b=2, c=3, d=4, e=5, f=6, g=7
-
0%
b) a=2; b=1, c=4, d=5, e=6, f=7, g=3
-
0%
c) a=2; b=1, c=4, d=3, e=7, f=6, g=5
-
40%
d) a=6; b=5, c=4, d=3, e=2, f=1, g=7
Q.18.
Match the following: 34521.
| Column I | Column II |
| a. Hibernation | Birds |
| b. Aestivation | Bacteria and fungi |
| c. Diapause | Reptiles and polar bears. |
| d. Spore formation | Snail and fishes. |
| e. Migration | Zooplanktons and insects. |
-
20%
a) a → 3 ; b → 4 ; c → 1 ; d → 2 ; e → 5
-
0%
b) a → 3 ; b → 4 ; c → 2 ; d → 1 ; e → 5
-
20%
c) a → 3 ; b → 4 ; c → 5 ; d → 1 ; e → 2
-
60%
d) a → 3 ; b → 4 ; c → 5 ; d → 2 ; e → 1
Q.19.
Which is correctly labelled with respect to the given diagram?
-
60%
a) B : Logistic curve
-
0%
b) C : Carrying capacity
-
20%
c) C : Exponential curve
-
20%
d) A: Carrying capacity
Q.20.
Mark the correct identification from the following picture of Biome distribution with respect to annual temperature and precipitation
-
60%
a) 1 – Grassland, 2 – Temperate forests, 3 – Tropical rain forests, 4 – Tundra.
-
0%
b) 1 – Desert, 2 – Coniferous forests, 3 – Temperate forests, 4 – Tundra.
-
40%
c) 1 – Grassland, 2 – Coniferous forests, 3 – Temperate forests, 4 – Arctic region.
-
0%
d) 1 – Grassland, 2 – Temperate forests, 3 – coniferous forests, 4 – Arctic and Alpine tundra.
Q.21.
The graph of age related distribution in a village is as following. If during 1 year potential mortality = relized mortality, then which type of graph is seen after 1 year ?
-
60%
a)
-
20%
b)
-
0%
c)
-
20%
d)
Q.22.
Population of CBM Village year wise 2000 → 100 2005 → 400 2010 → 600 2012 →800 What will the appropriate graph for this
-
17%
a)
-
50%
b) Irruptive
-
33%
c) ‘S' shape
-
0%
d) J shape