7. Arteries are blood vessels which deliver oxygen rich blood from the heart to the tissues of the body. Its structure is specialized with a muscular tube lined by smooth tissue which has three layers (see images below): Artery walls contain muscle cells so that they can change blood flow and blood pressure by either contracting or relaxing. Given that fainting is caused by a sudden drop in blood pressure, explain how the structure of smooth muscle cells contributes to their action (function) when a person faints. (MS-LS1-2) (DOK3) (3 PT)

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?

Astudent completed a lab report. which correctly describes the difference between the "question" and "hypothesis' sections of her report? "question states what she is asking, and "hypothesis" states the result of her experiment "question" states what she is asking, and "hypothesis" states what she thinks the answer to that question is in 'if. then because" format. "question" describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. "question" describes what she is trying to find out, and "hypothesis" states any additional information or prior knowledge about the question