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Earn 100

According to Bergmann's rule, the mammals from cold climate have
(a)larger body and short extremities.
(b)larger body and extremities.
(c)shorter body and extremities.
(d)shorter body and larger extremities.

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Important Questions on Organisms and Environment
MEDIUM
Match List with List.
List | List | ||
(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 |

HARD
Reason (R): Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.
In the light of the above statements, choose the correct answer from the options given below.

EASY
Reason (R): To enhance transpiration in desert plants

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HARD
Statement (S): Very small animals are rarely found in the polar regions.
Reason (R): Small animals have a larger surface area relative to their volume and tend to lose body heat.
The correct answer is

HARD

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Match the following:
Set-I | Set-II | ||
(A) | Endosmosis | (I) | High altitude adaptation |
(B) | Exosmosis | (II) | Desert adaptation |
(C) | Metabolic water | (III) | Problem for fresh water animal |
(D) | Increase in the production | (IV) | Problem for marine animals |
The correct match is

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MEDIUM


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(i) Burrowing in soil to escape high temperature
(ii) Losing heat rapidly from the body during high temperature
(iii) Bask in sun when temperature is low
(iv) Insulating body due to thick fatty dermis

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MEDIUM
(A) Bears go into _(1)_during winter to_(2)_ cold weather
(B) A conical age pyramid with a broad base represents_(3)_ human population
(C) A wasp pollinating a fig flower is an example of _(4)_
(D) An area with high levels of species richness is known as _(5)_
Which one of the following options give the correct fill ups for the respective blank numbers from (1) to(5) in the statements

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