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Aestivation

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Question

what do you mean by hibernation (winter sleep) , aestivation (summer sleep) , diapause ?

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Solution

Hibernation is a suppressed metabolic state in which some animals pass their winters. It is a state of deep sleep.
Aestivation is a deep sleep or metabolic rest in amphibians and insects in response to hot and dry season.
Diapause is a period of suspended development in an animal mainly insects , called as animal dormancy in response to changes in environmental conditions.

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Q. Q. Consider the following pairs:

S.No	State of Inactivity	Animal
1.	Aestivation	Snail
2.	Hibernation	Bat
3.	Diapause	Insect

Which of the pairs given above is/are correctly matched?

Q. निम्नलिखित युग्मों पर विचार कीजिए:

क्रम संख्या	निष्क्रियता की स्थिति	जीव
1.	ग्रीष्म ऋतु की शिथिलता (Aestivation)	घोंघा
2.	शीत निद्रा (Hibernation)	चमगादड़
3.	उपरति (Diapause)	कीट

उपर्युक्त युग्मों में से कौन सा/से सुमेलित है/हैं?

Q. Assertion :Pila sometimes undergoes summer sleep or aestivation. Reason: Pila have to adopt themselves for unfavourable environment.

Q. Winter : Hibernation : : Summer : ?

Q. Match the correct set.

A. Diapause	1. Deep winter sleep after accumulation of body fat.
B. Hibernation	2. A change in the properties of an organism at genetic level in response to environment.
C. Phenotypic adaptation	3. Interaction of an orchid growing on mango tree.
D. Commensalism	4. Physiological state of dormancy with very specific triggering and releasing conditions being suspended growth.

Q. What do you mean by Aestivation? Explain types of aestivation.

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