Fresh waters tend to sink or float when they meet salt waters? choose one

If you are in a chronic state of anxiety but also suffer from moment of sudden, intense fear you are problably suffering. from

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry

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