Dr. Snell studies the part of the brain that is active when people are lying. She asks half of her participants to tell the truth about an event from their childhood and half to tell a lie about an event from their childhood. Which of the following brain imaging techniques should she use to detect brain areas that are active when the participants are lying? functional MRI (fMRI) T/F

Which type of bacterial reproduction is depicted in the diagram?

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?

Construct at least two possible hypotheses for the student’s experiment.