Without further context I would assume the answer here is: Hydroxyl groups.
After some research, I believe it is a drug that is used for high blood pressure and it's name is Bystolic 21/2mg
Answer:
A joint or articulation (or articular surface) is the connection made between bones in the body which link the skeletal system into a functional whole. They are constructed to allow for different degrees and types of movement.
Explanation:
Yes it does because it depends on how strong the man is on either end of the rope