EASY
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According to Bergmann's rule, the mammals from cold climate have

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Important Questions on Organisms and Environment

MEDIUM

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
HARD
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.
EASY
Assertion (A): Desert Plants have sunken stomata
Reason (R): To enhance transpiration in desert plants
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
Small mammals and birds are rarely found in polar regions. The reason is that
EASY
Select the incorrect anatomical adaptation of Xerophytes among the following?
EASY

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 RBC production (IV) Problem for marine animals

The correct match is

EASY
Which of the following features of plants is not helpful in adapting to desert life?
MEDIUM
The figure given below is a diagrammatic representation of the response of organisms to abiotic factors. What do a, b, and c represent respectively?

Question Image
EASY
Consider the following four conditions (i) - (iv) and select the correct pair of them as adaptation to environment in desert lizards:
(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
EASY
Which biological factor is responsible for poor vegetation in deserts?
EASY
Based on temperature, the classification of plants are done by:
MEDIUM
Consider the following statements (A)-(D) each with one or two blanks.
(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
EASY
Rhizophora is a characteristic component of:
EASY
What is the most important factor in the success of the animal population?
EASY
Which of the following pairs is correctly matched?