How do trophic level, food web, food chain , consumer, and producers work together in an ecosystem and which of the terms can be used to include all of the rest of the terms ?

Explanation:

The trophic level of an organism is the position it occupies in a food web/food chain. Producers are typically plants that get their energy from the sun, and consumers are the organisms that eat the producers. The last question I'm not too sure. Hope I could help a little!

"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."

what is the statement?