What are the purposes of decomposers

When two movable joints meet at a joint, their do not touch one another.

Oxygen passes through capillary walls and into interstitial space where cells absorb ? a. nitrogen, b. oxygen, c. carbon dioxide, d. metabolic waste

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.