Which statement describes two organ systems working together to get rid of wastes made by cells? A. The lungs allow oxygen from the air to enter the blood. B. Blood vessels bring blood to and from the walls of the intestines. C. Kidneys filter wastes from the bloodstream and produce urine. D. The brain monitors the level of carbon dioxide in arteries.

Cultural, economic , and social changes that resulted in the migration of more people into cities - utilitarianism -industrial revolution -age of enlightenment

Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing

Adouble-blinded trial for a new indication is conducted under an ind comparing two (2) marketed drugs, at twice the approved prescribed doses. on day 2, subject 603 had difficulty breathing. although it was life-threatening initially, subject 603 was treated and discharged directly from the emergency department after complete recovery. on day 5, subject 20 had a headache, which led to hospitalization and required blood pressure lowering medications. these episodes cannot be explained on the basis of the pharmacological property of either drug or the subjects' medical histories. the investigator would submit an sae report for