What personal protective items should be worn for a lab activity that involves water? O A. none, because water is safe
O B. gloves and closed toed shoes
O C. gloves, closed-toed shoes, and goggles
D. goggles and closed-toed shoes

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.