Answer:
D) Sea otters are a keystone species as they prevent a herbivorous species from completely destroying a plant species.
Explanation:
Answer:acid and base indicators are used to estimate the pH of a solution
Explanation:
Chromosems is the right answer
Starch blocker help prevent the body from absorbing starches so you don't absorb calories, and fat blockers are kind of the same thing, they don't let your body absorb fat, instead it excretes it as waste.
Answer:
Nitrogen
Explanation:
the general form of carbohydrates is
CxH2xOx
but for protein there's a Nitrogen in the functional group
