NEET-XII-Biology
13: Organisms and Populations
- #10Distinguish between the following:
(a) Hibernation and Aestivation
(b) Ectotherms and EndothermsAns : null (a) Hibernation and Aestivation
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Hibernation
Aestivation
1.
Hibernation is a state of reduced activity in some organisms to escape cold winter conditions.
1.
Aestivation is a state of reduced activity in some organisms to escape desiccation due to heat in summers.
2.
Bears and squirrels inhabiting cold regions are examples of animals that hibernate during winters. 2.
Fishes and snails are examples of organisms aestivating during summers.
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Ectotherms
Endotherms
1.
Ectotherms are cold blooded animals. Their temperature varies with their surroundings.
1.
Endotherms are warm blooded animals. They maintain a constant body temperature.
2.
Fishes, amphibians, and reptiles are ectothermal animals.
2
Birds and mammals are endothermal animals.
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- #10-aHibernation and AestivationAns : Hibernation and Aestivation
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Hibernation
Aestivation
1.
Hibernation is a state of reduced activity in some organisms to escape cold winter conditions.
1.
Aestivation is a state of reduced activity in some organisms to escape desiccation due to heat in summers.
2.
Bears and squirrels inhabiting cold regions are examples of animals that hibernate during winters. 2.
Fishes and snails are examples of organisms aestivating during summers.
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- #10-bEctotherms and EndothermsAns : Ectotherms and Endotherms
-
Ectotherms
Endotherms
1.
Ectotherms are cold blooded animals. Their temperature varies with their surroundings.
1.
Endotherms are warm blooded animals. They maintain a constant body temperature.
2.
Fishes, amphibians, and reptiles are ectothermal animals.
2
Birds and mammals are endothermal animals.
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