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