54.5 Many freshwater communities appear to be organized
along the top-down model. What actions might ecolo-
gists take if they wanted to use biomanipulation to
control excessive algal blooms in a lake with four trophic
levels (algae, zooplankton, primary predator fish,
and top predator fish)?

is this for the e2020 class

"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."

c. the initial amount of money placed in the savings account

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully