Welcome to the NCERT Solutions for Class 12 Biology - Chapter Organisms and Population. This page offers a step-by-step solution to the specific question from Exercise 1, Question 10: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
(a) Hibernation and Aestivation
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Hibernation |
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Aestivation |
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1. |
Hibernation is a state of reduced activity in some organisms to escape cold winter conditions. |
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Aestivation is a state of reduced activity in some organisms to escape desiccation due to heat in summers. |
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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. |
(b) Ectotherms and Endotherms
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Ectotherms |
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Endotherms |
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1. |
Ectotherms are cold blooded animals. Their temperature varies with their surroundings. |
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Endotherms are warm blooded animals. They maintain a constant body temperature. |
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2. |
Fishes, amphibians, and reptiles are ectothermal animals. |
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Birds and mammals are endothermal animals. |
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