I am pretty sure the answer is increase and increase. Because 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.
it works by telling you are sick are you have some sort of disease
Answer;
A Niche is the role a species plays in the ecosystem while a habitat is the physical environment in which a species lives.
Explanation;
-Each organism plays a particular role in its ecosystem. A niche is the role a species plays in the ecosystem. A niche will include the organism's role in the flow of energy through the ecosystem.
-The habitat is the physical area where a species lives, it is described by the abiotic (non living) factors such as climate, sunlight etc. and the biotic factors (living factors).
They are known as Bacillus