The Total solution for NCERT class 6-12
Hibernation
Aestivation
Also known as winter sleep, it is a state of reduced activity observed in some entities to escape the extreme cold climatic conditions
Also known as summer sleep, it is a state of reduced activity noticed in some entities to escape the dehydration as a result of heat in summers
Examples – Squirrels and bears found in cold regions hibernate in winters
Example – Snails and fishes aestivate in summers
(b) Ectotherms and Endotherms
Ectotherms
Endotherms
The body temperature varies with their surroundings
Body temperature remains constant
They are cold blooded-entities
They are warm-blooded entities
Examples – reptiles, fishes, amphibians
Example – mammals and birds