In humans, the amy1 gene produces the enzyme amylase in cells of the salivary glands. amylase breaks down starch (a polysaccharide) into the sugar maltose (a disaccharide). people from cultures with diets high in starch produce more amylase than people from cultures with diets low in starch because of a mutation in the amy1 gene. explain in two to three sentences why the frequency of this amy1 mutation would have increased in frequency in populations with a high starch diet.

Which of the following statements is correct in hour our immune system responds to a potential pathogen? a. the adapted immune system will call on the innate immune system to destroy the pathogen. b. b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c. the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. d. the t-cells in the adapted immune systems are the first to recognize the pathogen vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a. antigen, antibody b. antibody, antigen c. antibody, antibiotic d. antibiotic, antibody