Adaptations

IMPORTANT

Adaptations: Overview

This Topic covers sub-topics such as Acclimatisation, Eurythermal Organisms, Stenothermal Organisms, Adaptations for Temperature Variation in Animals, Light as Major Abiotic Factor and, Soil as Major Abiotic Factor

Important Questions on Adaptations

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What are eurythermal organisms?

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_____ (Stenothermal/Eurythermal) organisms tolerate only a narrow range of temperatures.

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The organisms that are able to tolerate a wide range of temperature are known as eurythermal organisms.

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Organisms which can tolerate narrow range of temperature are called

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Stenothermal animals can tolerate a wide range of temperature conditions.

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Amphibians like frogs and reptiles like lizards are:

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Fill in the blank with the correct word given in the bracket.

_____ (Eurythermal/Epithermal) organisms are those organisms which can tolerate a wide range of temperature.

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Nyctitropic movements in leaves of leguminous plants is due to effect of sunlight.

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Fill in the blank with the correct word given in the bracket.

The study of soil is called _____ (pedology/eitology).

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What do you understand by acclimatization?

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Acclimatization and adaptation are one and the same thing.

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Growth of thick wool in sheep in cold climates is an example of _____.( acclimatisation/ hibernation/ aestivation)

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Eurythermal animals and plants are those which

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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