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Respiration Relay
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In this physical activity, groups of learners act as blood cells traveling through the circulatory system.
Build a Lung
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Most of the time, we don't have to think about breathing. In fact, you're probably breathing right now without thinking about it!
What Cells Can I See in Muscle and Spinal Cord Tissues?
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In this activity (page 37 of the PDF), learners observe, on a prepared slide, muscle and spinal cord cells from a rat.