The answer is false.
The digestion of starch starts in the oral cavity. This process requires an enzyme called amylase, which can digestion starch to Maltose, a kind of sugar. And there is salivary glands in the oral cavity, which secretes salivary amylase. These enzymes are present in saliva, so the digestion already starts in your mouth.
More starch and Maltose will still be able to be digested as glucose later on in the digestive system, especially in the duodenum, aka the small intestine. Intestinal amylase will do the job.
The head of a phospholipid is "water loving" and is said to be hydrophilic.
I believe the answer is C) How does a change in temperature affect the reproduction of crayfish?
The concentration of H+ ion (pH) could influence the structure of protein, which might inactivate some enzyme of an organism and alter their metabolism. All research questions beside option C is related to the pH. Buffer solution will provide an protection that will makes the pH become more stable. Acid rain contains acid which will decrease the pH of the surrounding environment.
located inside the nucleus at the center of an atom