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Evolution Of Immunity And The Invertebrates
Beginning of paper
"Article Summery" Name: "Immunity and the Invertebrates" Periodical: Scientific
Pages Read: 9
The complex immune systems of humans and other mammals evolved over
quite a long time - in some rather surprising ways. In 1982 a Russian zoologist
named Elie Metchnikoff noticed a unique property of starfish larva. When he
inserted a foreign object th ....
Middle of paper
....nnate system of immunity. Innate cellular immunity is believed
to be the earliest form of immunity. Another form of innate immunity is
complement, composed of 30 different proteins of the blood.
If these mechanisms do not work to defeat an invader, vertebrates rely
on another response: acquired immunity. Acquired immunity is mainly dealt by
specia.... |
| Word count: 1152 |
Page count: 5 |
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