How does the work of Warren and Marshall illustrate steps of the scientific method? They made observations, formed a hypothesis, conducted experiments, and published their results. They did appropriate experiments and won the Nobel prize. They remained curious about ulcers but did not go to the trouble to document their findings. They worked hard and made a great deal of money from their ideas.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

"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."