Susan is having a debate with her brother about wave movement. she believes waves will always travel the same speed if they have the same energy, no matter what the medium it is traveling through. her brother says this is not correct, and different mediums lead to different wave speeds. who is right and why?

(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.

Nucleic acid certain protein cell membranes certain carbohydrates

Pulmonary arteries carry highly oxygenated blood. true or false?