<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Topics tagged with lesson 1]]></title><description><![CDATA[A list of topics that have been tagged with lesson 1]]></description><link>https://community.secnto.com//tags/lesson 1</link><generator>RSS for Node</generator><lastBuildDate>Mon, 08 Jun 2026 21:48:51 GMT</lastBuildDate><atom:link href="https://community.secnto.com//tags/lesson 1.rss" rel="self" type="application/rss+xml"/><pubDate>Invalid Date</pubDate><ttl>60</ttl><item><title><![CDATA[BT301 Lesson-1-14 Discussion]]></title><description><![CDATA[@Vu-Kick said in BT301 Lesson-1-14 Discussion:

Plz explain the bone marrow and stem cells

Bone marrow is the spongy tissue inside some of your bones, such as thigh bones. It contains stem cells. The stem cells can develop into the red blood cells that carry oxygen through your body, the white blood cells that fight infections, and the platelets that help with blood clotting.
]]></description><link>https://community.secnto.com//topic/1718/bt301-lesson-1-14-discussion</link><guid isPermaLink="true">https://community.secnto.com//topic/1718/bt301-lesson-1-14-discussion</guid><dc:creator><![CDATA[zaasmi]]></dc:creator><pubDate>Invalid Date</pubDate></item></channel></rss>