What is Darwinism?!

Simple Form Please?! need info+ things about Darwin+ Darwinism!?

Answers
Darwinism is a theory of organic evolution based on Charles Darwin's Origin of the Species. It's a theory of biological evolution stating that all species of organisms arise and develop through the natural selection. Species may evolve over time through small, inherited changes that increase the organism's ability to compete, survive, and reproduce.
jon.ellis
15 June 2011
Stanford provide a good explanation of Darwin and Darwinism here http://plato.stanford.edu/entries/darwinism/
jon.ellis
15 June 2011
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phytoplankton biology project help me pleas

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How does tissue fluid return back into the circulatory system? ( AQA AS biology)


Q - How does tissue fluid return to the circulatory system?

In my textbook, it says the main reason is that it re-enters the capillaries by the loss of hydrostatic pressure within them, so by the time the blood gets to the venous end of the capillary the hydrostatic pressure is less within the capillary than outside them in the tissue fluid, so the tissue fluid is forced back into the blood in the capillary. However, when I look at mark schemes it says that it mainly re-enters by osmosis? How does it move in by osmosis? (I know that the remaining moves back into the bloodstream via the lymphatic system)

Answer

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