During gym class, raul walks briskly for a half hour. jenna decides to sprint and run the bleachers for the same amount of time. which statement best compares the cellular processes occurring in each student during this time?

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?