!i'm stuck and this is the last question. which statement best explains why cells in organisms such as animals reproduce? cell division animals repair old cells. a. cell division produces glucose which is used as food. b. reproduction breaks down glucose into useful energy. c. reproduction releases energy necessary for animals to survive.

A.Cell division produces

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

In fact it is not just nuclear fusion and fission that  can  transform  matter  (or mass)into energy. any time  energy  is produced, some small amount of  matter  or mass isconverted into energy.