C is correct because Indians were not near as educated as Africans. The Natives had undelvoped technology and poor knowledge of the world. Also the Europeans brought the disease to the Indians, not the other way around so Afican slaves were easier to get because of the dying Indian population.
B) less groundwater accumulates
Answer: The pH dependence is usually due to the side groups of the amino acids. A change in pH changes the protonation pattern and can, in extreme cases, result in protein denaturation. I therefore suspect that your protein stabilizes the enzyme structure, thus keeping it active at sub optimal pH values.
Explanation: Hope this helps :)
Option A
A locus is the singular form of Loci and its depicts the location of a gene on the chromosome.
