HELP PLS Which of the following describes a function that relies on the skeletal system?
1.Blood cells are produced and used in the body.
2.The body delivers oxygen to cells for use.
3.Chemical messages regulate the action of cells.

The real advantage to hydrostatic weighing is that it a. can be done anywhere with no equipment b. gives one of the most accurate measurements of body fat c. uses calipers to measure body fat select the best answer from the choices provided.