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The Flow of the Aqueous Humor
A detailed diagram of where the aqueous fluid comes from and what its function is.
York University
York University: How Neurons Talk to Each Other
York University provides a good site on the physiology of nerve transmission. Embedded vocabulary help is available if you need it.
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Hvpm: The Evolution of Flight
A description of the wings and compound eyes of insects and its components; also discusses the advantages and disadvantages of having compound eyes.
York University
York University: Neuron Graphic
York University provides a graphic which depicts the general structure of the neruron.