motor proteins are responsible for moving vesicles and organelles within the cell. motor proteins move along protein "tracks." in the example shown in the visualizing figure, what are those tracks made of?

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

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?

Identify the examples in which sam interacts only with natural resources