Science and Research - Research Article from UXL Encyclopedia of Water Science

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Ecology as Part of the Biological Sciences

The components of the biological world are often organized along a spectrum. Assuming the spectrum is laid out from left to right with the left being the smallest, atoms are at the far left. When atoms combine together they organize into molecules, which are just to the right of atoms on the spectrum. Moving right along the spectrum, next comes cells, which are the smallest unit of life. Next come tissues, such as muscle tissue and nervous tissue, which are collections of cells that work together to perform a function. These tissues are then organized into organs, such as the heart and the brain, and these are found to the right of tissues on the spectrum. Organs work together as organ systems, such as the cardiac system, which includes the heart as well as the blood vessels that transport blood throughout the...

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This section contains 1,913 words
(approx. 7 pages at 300 words per page)
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UXL Encyclopedia of Water Science
Science and Research from UXL Encyclopedia of Water Science. ©2005-2006 by U•X•L. U•X•L is an imprint of Thomson Gale, a division of Thomson Learning, Inc. All rights reserved.
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