What are the major events of an action potential and what ion changes are associated with each event?

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone