1 2 3 4 5 6 7 8 9 10 Which of the following choices is the most important to do before starting an exercise program?
A.
see your doctor
B.
talk to your friends for advice
C.
lift some weights
D.
measure your body fat

How does fluid in the body become lymph? how is it returned to your blood

*edit* i took the test and i picked a and it was incorrect for its c! rank the following suggestions for preventing std, in order of increasing effectiveness. 1) using latex condoms properly 2) using spermicidal foam or jelly with a monogamous partner 3) abstaining from sexual intercourse and genital contact a. 1, 2, 3c. 2, 1, 3

Answer in a couple of paragraphs, 1 or 2 at the most if anything! 20 points + brainliest--> explain what all the systems in your body do to work together < --list of systems needed: circulatory systemrespiratory systemdigestive systemexcretory systemnervous system