For which purpose would a visual model of a food chain be most useful?(1 point) to see the way humans affect the environment to see the way humans affect the environment to see how organisms react to environmental changes to see how organisms react to environmental changes to see why photosynthesis occurs in plants to see why photosynthesis occurs in plants to see the flow of matter and energy between organisms

Sperm pass through the and connect to a short ejaculatory duct. vas deferens prostrates seminiferous tubules none of the above

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?

What are the responsibilities of the region of the brain highlighted below? =+= will rate brainiest =+=