The theory of evolution that most closely associated with which scientists

answer; ///(b) it is composed of four protein chains and four heme groups;

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

there's the proffessional site that will you.

geologic time scale (for gradpoint) =)