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Mayank1444
@mayank1444
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Joined: Oct 11, 2021
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Answer to: Two opposite forces operate in the growth and development of every population. One of them relates to the ability to reproduce at a given rate. The force opposing to it is called

Correct answer: (3) environmental resistance.

4 years ago
Forum
Biology
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Answer to: In India, human population is heavily weighted towards the younger age groups as a result of

Correct answer: (1) short life span of many individuals and high birth rate

4 years ago
Forum
Biology
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Answer to: Human population growth in India

Correct answer: (3) can be regulated by following the national programme of family planning

4 years ago
Forum
Biology
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Answer to: The nature of climax community ultimately depends on

Correct answer: (2) climate

4 years ago
Forum
Biology
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Answer to: In increasing order of organizational complexity, which one of the following is the correct sequence?

Correct answer: (2) Population, species, community, ecosystem

4 years ago
Forum
Biology
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Answer to: Keystone species in an ecosystem are those

Correct answer: (3) contributing to ecosystem properties

4 years ago
Forum
Biology
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Answer to: In a food chain, the largest population is that of

Correct answer: (2) producers

4 years ago
Forum
Biology
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Answer to: Tropical forests occur in India (1) Kerala and Assam (2) Jammu and Kashmir (3) The forests do not occur in India (4) Rajasthan

Correct answer: (1) Kerala and Assam

4 years ago
Forum
Biology
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Answer to: Sunken stomata is the characteristic feature of (1) xerophyte (2) hydrophyte (3) halophyte (4) mesophyte

Correct answer: (1) xerophyte

4 years ago
Forum
Biology
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Answer to: Which of the following pairs is correctly matched? (1) excessive perspiration - xeric adaptation (2) uricotelism - aquatic habitat

Correct answer: (3) stream lined body - aquatic adaptation

4 years ago
Forum
Biology
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Answer to: The concept that population tends to increase geometrically while food supply increases arithmetically was put forward by

Correct answer: (3) Thomas Malthus

4 years ago
Forum
Biology
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Answer to: The sum total of the populations of the same kind of organisms constitute

Correct answer: (3) species

4 years ago
Forum
Biology
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Answer to: Soil best suited for plant growth is (1) sandy (2) clay (3) gravel (4) loam

Correct answer: (4) loam

4 years ago
Forum
Biology
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Answer to: Association of animals when both partners are benefitted

Correct answer: (4) mutualism

4 years ago
Forum
Biology
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Answer to: Xeric environment is characterised by

Correct answer: (4) low atmospheric humidity

4 years ago
Forum
Biology
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Answer to: Animals that can tolerate a narrow range of salinity are

Correct answer: (2) stenohaline

4 years ago
Forum
Biology
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Answer to: Homeostasis is (1) disturbance of self regulatory system and natural controls (2) tendency of biological systems to change with change in environment

Correct answer: (4) tendency of biological systems to resist change

4 years ago
Forum
Biology
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Answer to: Deep black soil is productive due to high proportion of

Correct answer: (1) clay and humus

4 years ago
Forum
Biology
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Answer to: Which one is true? (1) Symbiosis when neither population affects each other (2) Commensalism when none of the interacting populations affect each other

Correct answer: (4) Symbiosis when the interaction is useful to both the populations

4 years ago
Forum
Biology
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Answer to: A fertile agricultural soil appears deep coloured at the surface as compared to soil one metre down. The reason for colour of topsoil is

Correct answer: (4) rich in organic matter

4 years ago
Forum
Biology
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