Which Crosscutting Concept BEST describes the following statement? "Your circulatory system pumps blood throughout your body and includes blood, blood vessels, and your heart."

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 is    record the line that the bottom of the meniscus touches. tell me if it is correct