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

I II III Regulators Conformers Partial regulators

I II III Conformers Regulators Partial regulators

I II III Partial regulators Conformers Regulators

I II III Partial regulators Regulators Conformers

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

( a ) − ( iv ) ; ( b ) − ( i ) ; ( c ) − ( iii ) ; ( d ) − ( ii )

( a ) − ( iv ) ; ( b ) − ( ii ) ; ( c ) − ( iii ) ; ( d ) − ( i )

( a ) − ( iv ) ; ( b ) − ( i ) ; ( c ) − ( ii ) ; ( d ) − ( iii )

( a ) − ( iv ) ; ( b ) − ( iii ) ; ( c ) − ( ii ) ; ( d ) − ( i )

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What are eurythermal organisms?

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Important Questions on Organisms and Populations

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Which of the following is incorrect pair regarding cyclomorphosis in Daphnia

?

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Animals living in air-water interface

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Observe the following graph of regulators

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In the above graph I, II and III represent

HARD

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Small mammals and birds are rarely found in polar regions. The reason is that

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Root does not help in the absorption of water in which of the following plant?

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Identify the incorrect statement

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Assertion

(A)

: In brackish water, stenohaline animals are abundant
Reason

(R)

: Brackish water animals can withstand wide fluctuations in salinity

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Which of the following statements are wrong regarding biodiversity ?
(i) Tropics harbor more species than temperate or polar areas
(ii) Terrestrial biodirersity increases from the equator to the poles
(iii) Patterm of biodiversity should not depend on latitude and species area relationship
(iv) Biodiversity exists not only at the species level but also at the lerels of biological organization
(v) Temperate regions are relatively more constant than that of the tropical regions

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Species that are most effective at colonizing new habitats show:

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Stratification is more common in which of the following?

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

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

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Individuals of one kind occupying a particular geographic area at a given time are called

HARD

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

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 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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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

In Amphibian and reptiles, the body temperature changes corresponding to external temperature. The organisms which show this kind of response is termed as -

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Homeothermy in humans is maintained through

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Autecology refers to ________

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Study the following statements regarding adaptations in freshwater habitat
I. Amoeba has contractile vacuole.
II. Glomerular kidneys in freshwater fishes.
III. Sponges form gemmules.
IV. Neoceratodus forms a gelatinous cocoon.
Among the above, the correct statements are

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

With reference to temperature adaptations, identify $A, B, C$ of the following graph

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

If rice is cooked in a pressure cooker on the Siachen glacier, at sea beach, and on Deccan plain, which of the following is correct about the time taken for cooking rice?

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Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Most animals are tree dwellers in a:

What are eurythermal organisms?

Important Questions on Organisms and Populations

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