What are the major roles of game officials in team sports?

The breakdown of peptides into amino acids is an example of . the release of insulin after eating a large meal is an example of .

Ingredients used in tobacco products been banned?

*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