Answer:
A parasitic relationship is one in which one organism, the parasite, live off of another organism, the host, harming it.
increase for both and
Enzymes are affected by changes in pH. The most favorable pH value - the point where the enzyme is most active - is known as the optimum pH. Extremely high or low pH values generally result in complete loss of activity for most enzymes.
I might be wrong but I think it's, B) Ocean tides bring warm water to the surface
