A cell is placed in a solution and the cell quickly shrinks. Based on this information, which explanation below best describes what caused the cell to shrink? A. The concentration of water was higher inside the cell than outside.

B. The concentration was constant because the cell is not permeable to the particles.

C. The concentration of water was lower inside the cell than outside.

D. The concentration of water was the same inside and outside the cell.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."