Before air enters the respiratory system, it passes through the pharynx, the gatekeeper of the upper respiratory system.

True or False?

During adolescence, most people develop a greater sense of independence a. true b. false

Want free points and brainliest? answer this drivers ed question correctly and you shall receive : ) in which of the following situations is it legal to pass? a. the vehicle you want to pass is driving at or above the speed limit in front of you. b. you must cross a center line that's solid on your side and broken on the opposite side. c. you are in the middle of crossing a bridge that only has one lane each direction. d. you are on a straight road and can pass the car ahead under the speed limit.

What statement is true about all chemical changes? a) chemical changes can be undone. b) chemical changes cannot be reversed. c) chemical changes change the color of objects. eliminate d) chemical changes do not form new products.