[Solved] An important function of selenium is to _____. A) help blood clot B) prevent free-radical formation C) stimulate the taste buds D) help in metabolism of cholesterol E) work with vitamin E in formation of hemoglobin Colon Cancer: A type of cancer that begins in the large intestine (colon), often detected through screening methods like colonoscopies. Screening Tools: Screening tools are instruments or tests used to identify the presence of diseases, conditions, or risk factors in individuals who do not yet show symptoms. Occult Blood: Blood that is not visible to the naked eye, typically detected through specific medical tests in stool, which can indicate gastrointestinal issues. Specific Gravity: The ratio of dissolved substances in a solvent as compared with the ratio of dissolved substances in distilled water, most commonly comparing the ratio of dissolved substances in a urine specimen with distilled water.