"The conclusion is one paragraph, as well. At this point, you should step back from the specifics of your subject and relate it to the world as a whole, a universal statement, if you will; this makes your topic relevant to the reader. Remember that this is the last thing your reader will read; therefore, a restatement of your Thesis Statement, a summary of your arguments and some thoughtful reflection is vital to leave the reader with a good impression."
The most commonly used version is 'viruses', but 'virii' is regarded by some as the 'proper' spelling.
Which is correct? [and why?]
The plural of virus is viruses. This tendency is sometimes called hypercorrection. A similar habit is the often-reviled "between you and I". And finally, what is the plural of octopus? Either octopodes or octopuses, but never octopi.
octopus, 1758 as genus name, from Gk. oktopous "eight-footed," from okto "eight" + pous "foot." Proper plural is octopodes, though octopuses probably works better in English. (Octopi is from mistaken assumption that -us is the L. noun ending that takes -i in plural. octoroon.)
I accept it's correct, but was wondering if you had ever heard it used, because I haven't. I've heard the form used elsewhere- dim memories of school Biology lessons. I just wonder if you know anyone who'd aroder the octopode salad in a restaurant. I have heard someone say 'these spaghettei', but I'm yet to meet an 'octopodes' user.