1 درکه
1
Which of the following effects can occur because of the high surface tension of water?
A. Organisms can resist temperature changes, although they give off heat due to chemical
reactions
| B. A raft spider can walk the surface of a small pond
C. Sweat can evaporate from the skin, helping to keep people from overheating
D. Lakes cannot freeze solid in winter, despite low temperatures

What type of competition exsist between two species. turtles and fish

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 of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis