D. Backbones.
All of the animals listed are vertebrae, a classification of animals that means they have backbones. Fish do not have legs, lungs, or hair, and birds lack hair as well.
To write a strong research paper you want to find reliable sources over your topic by going to the library and getting some books or using google scholar you want to put the information in a way that flows and also keep your opinions to your self for the most part if this is typed I highly recommend a 1.5 to double spacing and to skip a line every paragraph to give it that professional look also you need to not only cite your sources in mla (apa if psychology) at the end in the order that you used them but with in the text itself for example "according to the united nation's board notes from 1996 france is indeed a nation" or "Pizza has been voted one of high schoolers favorite food (pg. 72 total polls 2011) and you always end by summarizing your entire essay and rephrasing your thesis statement to end, and that is how you write a strong research essay.
The Dunkirk evacuation, code-named Operation Dynamo, also known as the Miracle of Dunkirk, was the evacuation of Allied soldiers during World War II from the beaches and harbour of Dunkirk, in the north of France, between 26 May and 4 June 1940
Answer:
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