Yes because it is because it does everything to help you in all different ways .
According to Twain man could not have ascended from lower animals (Darwin theory of evolution) because man makes cruel and horrible decisions, rather man descends from Higher animals. He proved his conclusions about man by using specific scientific method, he subjected every postulate itself to the crucial test of actual experiment and have adopted it or rejected it according to the results.
Pocreation, dispersing the seeds
Gas exchange takes place in the alveoli located in the lungs and the capillaries that surround them.
