Is the movement of materials from an area of high concentration to an erea of low concentration

Passive transport describes the movement of substances down a concentration gradient and does not require energy consumption. Diffusion is the net movement of substances from an area of higher concentration to an area of lower concentration.

Passive transport describes the movement of substances down a concentration gradient and does not require energy consumption. Diffusion is the net movement of substances from an area of higher concentration to an area of lower concentration.

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c.more precipitation,but only when emission levels.

"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."