What factors may contribute to aging?
a. cells stop dividing after 50 divisions.
b. cells become more and more damaged.
c. genes "tell" cells to stop dividing.
d. all of the above

Will a heavier bowling ball hit pins better than a lighter bsll

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.