Haploid number of chromosomes
I dont know the era, but early life on earth was horrid for our type of species we have right now, they're was no oxygen, on C.dioxide and other properties, the earth was EXTREMELY hot due to not having an atmopshere yet, And no water, only gas, then fungus and other micro organisms formed due to the heat, and gas which is why fungus can survive in such horrid conditions.
In many larger organisms, evolution has favored lungs and a digestive tract with more branching or folds. Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The heritable characteristics of biological populations change over successive generations with a diversity at every level of biological organization, including the levels of species, individuals organisms, and molecules.
PH changes protein structure if the pH level is below seven which is acidic and or above seven which is basic. The best condition for the enzyme to work is the pH of seven this is where the protein carries out its function and is not denatured. It fits into the enzyme
