[Solved] The Bay of Pigs incident was the failed attempt by CIA-supported rebels to overthrow A) Saddam Hussein. B) Nikita Khrushchev. C) Sigmun Rhea. D) Mao Zedong. E) Fidel Castro. Bacteria: Microscopic, single-celled organisms found everywhere in the environment, which can be either beneficial or harmful to humans and other living beings. Occult Blood: Blood not visible to the naked eye, often detected in stool or urine samples to diagnose conditions such as gastrointestinal bleeding. 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.