The image below shows the cells in a plant before and after it has wilted. Which explanation BEST describes how a change to cellular structures causes the change seen in the plant as a whole? * Captionless Image a. The amount of water in the cell vacuoles has decreased, so they are not supporting the cells. b. The nuclei have stopped controlling the cells activity, leading to a change in cell structure. c. The chloroplasts have not captured enough light energy to fill the cells. d. The mitochondria have not produced enough energy to keep the cells rigid.

"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."

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]