The chart below shows relationships between genes, the environment, and coloration of tomato plants. Which statement best explains the final appearance of these tomato plants? * 1 point
Captionless Image
The expression of gene A does not vary with the environment.
The expression of gene A is affected by light.
The expression of gene B varies with the presence of light.
Gene B is expressed only in light.

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?

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Development has provided electrically for less money but what may be considered a cause of nuclear power