Blood vessels that carry blood away from the heart. Capillaries Tiny, thin-walled blood vessels that allow the exchange of gases and nutrients between the blood and cells and are located between arteries and veins.
Two students working on an essay together. The definition of an essay is a short piece of writing that expresses information as well as the writerâs opinion. An example of an essay is a short paper about why smoking is bad for you. To essay is defined as to try something.
Writing an Essay Guides. A compare and contrast essay is a form of academic writing that is built around an examination of at least two items. There are twoâ¦. A narrative essay is a form of academic writing that is built around a narration of a certain event or situation.