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Chapter 2: MS What is a Living Organism?

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How do we tell the difference between a living thing and a non-living thing? Think about your own body. How do you know that you are alive? Your heart beats. You breathe in air. Do all living things need to do be like you in order to be "alive"?

The above image represents bacteria. Do these bacteria look like they could be alive? They do not have hands or feet or a heart or a brain, but they are actually more similar to you than you may think. Scientists found that all living things share certain characteristics. In this chapter, we will discover how to precisely define living things.

Image copyright Tischenko Irina, 2014. www.shutterstock.com. Used under license from Shutterstock.com.

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7 , 8

Date Created:

Oct 24, 2013

Last Modified:

Aug 12, 2014
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