What can be inferred about the osmosis of water in potato cells? A. The cells stop gaining water by osmosis in the 0.2M solution, so the concentration of glucose in the potato cells must be greater than 0.2M.
B. The cells stop gaining water by osmosis in the 0.2M solution, so the concentration of glucose in the potato cells must be between 0.1M and 0.2M.
C. In the solutions where the cells lose water by osmosis, the original concentration of water in those cells must be less than the concentration of water in the solutions.
D. In the solutions where the cells gain water by osmosis, the original concentration of water in those cells must be greater than the concentration of water in the solutions.

Paint and solvents pose no potential hazard to human health. select the best answer from the choices provided t f

Astudent from one of the research labs is having trouble preparing a slide for examination and photographing. the bacterial slide that he has brought to you was prepared using a commercially purchased stain. he has asked for your in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. after examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium. which of the following statements does not explain the fact that there are no bacteria present on the student’s slide? by not allowing a glass slide to completely air dry before heat fixation, the flame will cause the surrounding water to boil and this will damage the bacterial cell. overheating during the fixation step boiled the water within the bacterial cells and resulted in the cells bursting. insufficient heating of the slide did not drive out the thin layer of water and this resulted in minimal bonding between the bacteria and the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide.

Do you think humans have a moral obligation to preserve the habitat of the chimpanzee