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Disease and Its Causes
Disease and Its Causes
Book Excerpt
ase of many animals it
seems as though the necessity of a fluid environment for living matter
did not apply, for the superficial cells of the skin have no fluid
around them; these cells, however, are dead, and serve merely a
mechanical or protective purpose. All the living cells of the skin and
all the cells beneath this have fluid around them.
Living matter occurs always in the form of small masses called "cells," which are the living units. The cells vary in form, structure and size, some being so large that they can be seen with the naked eye, while others are so small that they cannot be distinctly seen with the highest power of the microscope. The living thing or organism may be composed of a single cell or, in the case of the higher animals and plants, may be formed of great numbers of cells, those of a similar character being combined in masses to form organs such as the liver and brain.
In each cell there is a differentiated area constituting a special structure, the nucleus, which contains a pe
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4.5
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great book,but only for science freaks
a.k.a. MAD scientists.
a.k.a. MAD scientists.
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should read it
11/13/2006
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FEATURED AUTHOR - Author Miranda Oh Is your typical girl: She loves the sunset, loves long walks on the beach, world travels, and When not playing the corporate part she can be found sipping wine and spending all her hard-earned money on shoes. Among her friends and family, Miranda Oh is known to be the storyteller of the group, always recapping crazy life stories and situations. Her personal experiences, emotions, and fantasies are the inspiration for most of her books, so there is a little bit of her in every… Read more