Rachel carson wrote about the delicate balance of organisms in a food web. snakeheads, a freshwater fish that is not normally found in the united states, was accidentally introduced to the lake eugene. as an adult, the snakehead would feed on crustaceans, small fish, reptiles, and even small mammals. it would not have any predators in this environment. considering the food web below how would this affect the ecosystem?

"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."

im not in connections yet but i might can you some questions. what grade are you in?