When you feel like you've written a lot without really saying anything, the best thing to do is
a. find new sources to replace the ones you used in the report
b. put your draft aside for a couple of days and then review your thesis and main points
c. start the draft over
d. write a new thesis statement

answer; bonds; i believe this is the correct answer good luck

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.