The normal function of a gene is to
a. encorde a protein
b. prevent illness
c. mutate into other cells
d. determine personality

Which of these pieces of safety equipment should be worn when operating a chainsaw

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive

Bennett has trouble interacting with other students in school lately. he has become frustrated easily when asked to work in groups, and he has been withdrawing from class discussions. his teacher is worried about his