The combination of chemical reactions through which an organism builds up or breaks down materials

The combination of chemical reactions through which an organism builds up or breaks down materials is called metabolism. I believe.

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

Ithink most frequently occurring lab-acquired infection. proper way to clean up a small blood spill that has dried on surface are to be used when caring for all patients at all times. which of the following actions would violate a lab safety rule.