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... cells, therefore I believe the cells would continually engage in exocytosis. Because the contents within the cell are being expelled, the membrane opens and fuses with the vesicle membrane. Therefore the cell is actually getting 'larger' and doesn't need more replacing. macrophage: these cells ...

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... challenges, it becomes accepted as a reasonable model for the way that some aspect of the world works. When a hypothesis fails a challenge, that opens the problem of developing a new hypothesis that is consistent with previous observation and offers predictive power so that it can be tested.

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Thank you, of course that opens up a whole new book of questions, I am doing research now, if i get stuck i know i can come back here

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... version of Rudolf the Red-nosed Reindeer . just went there because it starts intriguing me and the site still works. after the main page it opens to a blank page then click one of the links in the top frame and the whatever appears. I agree with your point about its readability but that ...

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The hairs in the organ of corti are called hair cells, and are connected to cell receptors. As they vibrate from sound, the move in such a way that opens ion channels that excite neural activity. So the hairs are involved here. Now where I could have been more clear, is the hairs are the same length, ...

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