Animals during summer season undergo summer sleep. This is known as

Both A and R are correct and R explains A

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Both A and R are correct but R does not explain A

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A is correct but R is incorrect

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Both A and R are incorrect

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Solution

The correct option is B Both A and R are correct but R does not explain A
Aestivation is a period of deep and prolonged sleep that occurs in the summer or dry season in response to heat and drought.Non-mammalian animals that aestivate include North American desert tortoises, crocodiles, and salamanders. Some amphibians (e.g. the cane toad and greater siren) aestivate during the hot dry season by moving underground where it is cooler and more humid.

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Similar questions

Q. Regarding the assertion and reason, choose the correct option.
Assertion [A]: Inhabitants close to busy airports are likely to experience health hazards.
Reason [R]: Sound levels of jet planes usually exceed 150 dB.

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

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