According to the graph, what does the change in water temperature at approximately 1300 m represent?

a. a cold current of water

b. a denser layer of water

c. a saltier layer of water

d. a layer of freshwater

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Talking listening and reacting non verbally are all part of communicating