Evolution Of Immunity And The Invertebrates

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Issue:

Science

 

Written by:

Doris F

 

Date added:

August 19, 2010

 

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Grade:

A

 

No of pages / words:

5 / 1166

 

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6297 times

 

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Essay content:

When he inserted a foreign object through it's membrane, tiny cells would try to ingest the invader through the process of phagocytosis. It was already known that phagocytosis occurred in specialized mammal cells but never in something less complex like a starfish. This discovery led him to understand that phagocytosis played a much broader role, it was a fundamental mechanism of protection in the animal kingdom...
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This discovery led him to understand that phagocytosis played a much broader role, it was a fundamental mechanism of protection in the animal kingdom. Metchnikoff's further studies showed that the host defense system of all animals today were present millions of years before when hey were just beginning to evolve...
displayed 300 characters

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