Which of these is not an effect of exercise on veins?
a. exercise force blood through the veins.
b. exercise keep blood from accumulating and stretching veins.
c. exercise keep the walls around veins strong.
d. exercise allows blood to pool in veins.

Astudent completed a lab report. which correctly describes the difference between the "question" and "hypothesis' sections of her report? "question states what she is asking, and "hypothesis" states the result of her experiment "question" states what she is asking, and "hypothesis" states what she thinks the answer to that question is in 'if. then because" format. "question" describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. "question" describes what she is trying to find out, and "hypothesis" states any additional information or prior knowledge about the question