The american college of sports medicine (acsm) recommends doing stretching exercise how often?

Synovial fluid serves as a lubricant to prevent friction between two parts that move on each other such as in the case of and bones.

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

Sometimes without even knowing it, people waste fresh water. write an editorial for our school newspaper. try to convince your readers that saving and recycling water should be something they do every day.