Which of these is NOT a function of the skin?
to protect the body against outside invaders
to keep the body at a constant temperature
to release chemicals that control blood sugar
to allow the body to feel when something is touching it

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.