Distilled water is devoid of any solutes. it contains no additional gases, minerals, or contaminants. would it be right to give a person an iv (intravenous) therapy of distilled water?
yes. distilled water is pure and will cause no harm.
yes. the iv will be isotonic to the cell cytoplasm, so it will have no adverse effect on the cells.
no. the iv will be hypertonic compared to the cell cytoplasm causing the cells to shrivel.
no. the iv will be hypotonic compared to the cell cytoplasm causing the cells to explode.

How many cells are our body made of ? ♡

How many chromosomes are in a gold 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?