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	<title>diatom &#8211; Greg Laden&#039;s Blog</title>
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		<title>Diatoms Large and Small</title>
		<link>https://gregladen.com/blog/2009/02/19/diatoms-are-algae-with-hard/</link>
					<comments>https://gregladen.com/blog/2009/02/19/diatoms-are-algae-with-hard/#comments</comments>
		
		<dc:creator><![CDATA[Greg Laden]]></dc:creator>
		<pubDate>Thu, 19 Feb 2009 16:26:45 +0000</pubDate>
				<category><![CDATA[Cell Biology]]></category>
		<category><![CDATA[diatom]]></category>
		<category><![CDATA[ess]]></category>
		<category><![CDATA[evolution]]></category>
		<category><![CDATA[Evolution]]></category>
		<category><![CDATA[Evolutionary Biology]]></category>
		<category><![CDATA[fresh water ecosystem]]></category>
		<category><![CDATA[marine ecosystem]]></category>
		<category><![CDATA[modeling]]></category>
		<category><![CDATA[Natural Selection]]></category>
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					<description><![CDATA[Diatoms are algae with hard parts. They make up a major part of the plankton found in fresh and salt water environments. Usually, diatoms exist as single celled free floating organisms, but they can also be colonies of several single cells. Their tiny little &#8216;shells&#8217; are made up of silica (these shells are called &#8220;fustules&#8221;). &#8230; <a href="https://gregladen.com/blog/2009/02/19/diatoms-are-algae-with-hard/" class="more-link">Continue reading <span class="screen-reader-text">Diatoms Large and Small</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		
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