Question

the variation in the atmospheric temperature do not affect our body . why ?

Answer 1

Cuz we are warm blooded organisms that is we keep our body temperature constant n it doesn't change with surrounding temperature.

Whereas cold blooded organisms can change their body temperature.

Answer 2

Because we are worm blooded animals.I.e,we can maintain a body temperature higher than our environment.we can maintain a stable body temperature by regulating metabolic process.