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Among the following Indian states, which one has the highest population density?
(a)West Bengal
(b)Bihar
(c)Kerala
(d)Uttar Pradesh

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Important Questions on Organisms and Populations
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.

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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 |

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Reason : Brackish water animals can withstand wide fluctuations in salinity

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HARD

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Observe the following graph of regulators
In the above graph I, II and III represent

HARD

EASY

EASY
With reference to temperature adaptations, identify of the following graph

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EASY

EASY

HARD

EASY

EASY

EASY

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