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Circulatory System and Blood components PowerPoint for high school ($)
Confessions of a Homeschooling Mom: Blood & the Heart Science Lesson
An artery with red blood cells.
Human blood with red blood cells, 3 T-lymphocytes, and activated platelets. By Dr. Dennis Kunkel
love this picture of red and white blood cells
blood donation FAQs
SEM image of a white blood cell, platelet and red blood cell.
Red blood cells trapped by fibrin threads