Distinguish between the following:
$(a)$ Hibernation and Aestivation
$(b)$ Ectotherms and Endotherms

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(N/A) Hibernation and Aestivation
Hibernation Aestivation
$1.$ Hibernation is a state of reduced metabolic activity in some organisms to escape cold winter conditions. $1.$ Aestivation is a state of reduced metabolic 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 that aestivate during summers.

$(b)$ Ectotherms and Endotherms
Ectotherms Endotherms
$1.$ Ectotherms are cold-blooded animals. Their body 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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