Whenever Andrea goes to the library to study, she takes a Red Bull energy drink with her and drinks it while she studies. As the semester progresses, she notices that she does considerably better on an exam when she drinks a Red Bull during it. She MOST likely does better because of:

the sphincter muscles at the end of the digestive tract is the anus.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

i think it is d. objects resist changes in their state of motion.