Three-year-old Maxim is playing with his toys happily as his mother is watching a movie. He looks up to see a few tears running down his mother's cheeks, because a sad scene just occurred in the film. He puts down his toys, climbs up next to his mother, and lays his head on her arm. When she asks him what's wrong, he says, "I'm sad, Mommy." Maxim has demonstrated the capacity to experience A) empathy B) sympaled C) acrimony. D) alimony.

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?

Onsider the paragraph above. what is one chemical property of water? a) water is a polar molecule. b) water is the universal solvent. c) water reacts with group 1 metals. d) water has a high specific heat capacity.

The carrier molecules of the electron transport system are located in the