A person who was infected with many common diseases as a child will contain more of which of the following compared to a child who was not exposed to many diseases? (2 points) Memory cells that provide a specific defense
Memory cells that provide a nonspecific defense
Monocytes that provide a specific defense
Monocytes that provide a nonspecific defense

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

Achair would be nonliving, also a toy, clothesand living things would be humans, animals, bugs