Match the following and select the correct option
Column I                          Column II
(I) Earthworm                  (i) pioneer species
(II) Succession                 (ii) Detritivore
(III) Ecosystem service     (iii) Natality
(IV) Population growth      (iv) Pollination

I

II

III

IV

1.

i

ii

iii

iv

2.

iv

i

iii

ii

3.

iii

ii

iv

i

4.

ii

i

iv

iii

Subtopic:  Ecological Efficiencies |
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Assertion (A): Among red, green and brown algae, the red algae are found in the deepest ocean.
Reason (R): Red algae possess phycobilins, which can absorb the blue and green light that penetrates the deepest water.

1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R)are true but (R) is not the correct explanation of (A)
3. (A)is true but (R) is false
4. Both (A) and (R) are false
Subtopic:  Introduction to Ecology |
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Assertion: The triangular age pyramid is a graphic representation of a young or growing population.
Reason: An age pyramid is a graphic representation of proportion of various age group of population.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion

2. Both assertion and reason are true but the reason is not the correct explanation of the assertion

3. Assertion is true but reason is false

4. Both assertion and reason are false
Subtopic:  Population Characters: Density |
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Assertion (A): The Mediterranean orchid Ophyrus employs 'sexual deceit' to get pollinated by some male bees.
Reason (R): Plant-animal interactions never involve co-evolution.

1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R)are true but (R) is not the correct explanation of (A)
3. (A)is true but (R) is false
4. Both (A) and (R) are false
Subtopic:  Introduction to Ecology |
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A person goes to high altitude and experiences 'altitude sickness' with symptoms like breathing difficulty and heart palpitations.
Reason (R): Due to low atmospheric pressure at high altitudes,
the body does not get sufficient oxygen.
In light of the above statements, choose the correct answer from the options given below.
1. (A) is true but (R) is false.
2. (A) is false but (R) is true.
3. Both (A) and (R) are true and (R) is the correct explanation of (A).
4. Both (A) and (R) are true but (R) is not the correct explanation of (A).

Subtopic:  Adaptations |
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Which one of the following is a matching pair of certain organism(s) and the kind of

association?

1. Shark and sucker fish - predation

2. Algae and fungi in lichens - mutualism

3. Orchids growing on trees - parasitism

4. Cuscuta (dodder) growing in other flowering plants - epiphytism 

Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
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Match column I with column II and select the correct option from the codes given below.

Column I Column II
A. Commensalism (i) One inhibited other unaffected
B. Parasitism (ii) One benefited other unaffected
C. Mutualism  (iii) Both are benefitted
D. Amensalism (iv) One benefitted other harmed
 
A B C D
1. (iv) (ii) (iii) (i)
2. (iii) (iv) (ii) (i)
3. (ii) (iv) (iii) (i)
4. (ii) (iv) (i) (iii)
Subtopic:  Population Interactions: Parasitism | Population Interactions: Amensalism | Population Interactions: Commensalism, Protocooperation & Mutualism |
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Match List-I with List-II

List-I List-II
(a) Allen's Rule (i) Kangaroo rat
(b) Physiological adaptation (ii) Desert lizard
(c) Behavioural adaptation (iii) Marine fish at depth
(d) Biochemical adaptation (iv) Polar seal

Choose the correct answer from the options given below :

(a) (b) (c) (d)
1. (iv) (i) (ii) (iii)
2.  (iv) (iii) (ii) (i)
3. (iv) (ii) (iii) (i)
4. (iv) (i) (iii) (ii)
Subtopic:  Adaptations |
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Choose the correct match

Bladderwert, sundew, venus flytrap : -

(1) Nepanthese, Dionea, Drosera

(2) Nepanthese, Utricularia, Vanda

(3) Utricularia, Drosera, Dionea

(4) Dionea, Trapa, Vanda

Subtopic:  Population Interactions: Predation |
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Which one of the following pairs is mismatched-

(1) Savanna - acacia trees

(2) Coniferous forest - evergreen trees

(3) Tundra - permafrost

(4) Prairie - epiphytes 

Subtopic:  Abiotic Factors: Temperature |
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