The map below shows the range of three types of grasslands in the united states. Some grasses of the tallgrass prairie grow to 6 feet or taller. Which factor could account for taller grasses in a tallgrass prairie. Blue: shortgrass prairie
Purple: mixed grass prairie
Green: tallgrass prairie

A: tallgrass prairies are located in a bottomland
B: tallgrass prairies have a cedar break
C: tallgrass prairies have more rainfall
D: tallgrass prairies are in a rain shadow

The answer is C: tallgrass prairies have more rainfall A P 3 x

"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."