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This site has everything that you need to know about cells, from the nucleus to the chloroplast! If you have assignments or tests on cells, this site will help you to learn about all of the different parts that form a living cell.
This site will introduce you to subjects such as matter, elements, atoms, and overall basic chemistry. If you are beginning to learn about the basic elements of the world, this site will give you the details that you need to know.
Would you like to learn about The Periodic Table in a new way? Take a glance at the periodic table of comic books on the Internet. It begins with Oxygen, and you can continue to read the rest of the comic books in order to learn more.
This is a good site on all the subjects related to Biology, including subjects such as evolution, genetics, marine Biology, and others. If you have a Biology assignment, then this it is a great place to explore!