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.
Answer:
The Loop of Henle serves to create a concentration gradient throughout the nephron which helps increase the reabsorption of water and certain ions. In the thin descending limb, water is very permeable and is reabsorbed due to the existing concentration gradient in the medulla.
Answer:
The carbon dioxide reacts with water to form carbonic acid.
Explanation:
CO2+H2O=H2CO3
In this reaction carbon dioxide(CO2) and water(H2O) act as reactant to form carbonic acid(H2CO3) which is a weak acid.
The above reaction is an important reaction carried out by bicarbonate buffer system to maintain normal acid base balance inside our body but this buffer system includes an additional reaction in with carbonic acid is ionized to form H+ and HCO3- ion or bicarbonate ion.
