The human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by F.
hydrochloric acid in the stomach
G.
the enzymes amylase and pepsin
H.
bile produced by the pancreas
J.
muscular contractions

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

fkk you n*gga

nb

explanation:

kj