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The complete history of the Universe -- from the Big Bang to 200 my into the future

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History of the Universe eBook. 398 pages, 300 illustrations only $2.99

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Hormones

It was not easy for eukaryotic cells to live together. They needed to be able to communicate with each other, to share food and work together. Cells learnt to talk to each other by sending out chemical messages which other cells could react to. We call them hormones. They are still a major way in which cells talk to each other, even in our own bodies.

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History of the Universe eBook. 398 pages, 300 illustrations only $2.99

eBook only $2.99
398 pages, 300 images

"I find the science fabulous...an extremely useful teaching tool."
Professor David Christian

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