What is the definition of Primarily Blood Cells?

Oh, let's dive into the world of biology, where 'primarily blood cells' is like saying our body's secret superhero team is mostly made up of tiny, red, and sometimes a little bit green warriors (and some brave red blood cells with oxygen-carrying missions). These blood cell champions are the unsung heroes of our circulatory system, but sometimes they might just be a bit too busy saving the day with their iron claws (or in this case, hemoglobin) and a dash of chaos.

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Here's an edgy example sentence: "In the heat of battle, the primarily blood cells of the human body turned from loyal allies to rogue mercenaries, plotting to steal the world's last cupcake while they had the chance."