Vestigial usually refers to traits which over evolution have lost their main function and are less useful than they once were.
In number one Hunter means that he thinks the teeth were from the ancestor whale shark but are now useless or nearly useless to the current whale shark.
The best answer to the question that is being stated above would be the sentence that is numbered one (1): 'When it comes to fiction, there are many genres'. The next sentences are only subtopics and only support the main idea that are lots of genres for fiction.
Put all of the direct sources you use (books, websites, magizines etc.)
List them in order using their citation including the author and the publisher. The easiest way to make one is easybib- www.easybib.com it automatically sites sources for you
