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The Circulatory or Cardiovascular System is affected positively by physical activity by causing blood to pump through your body faster and your heart to beat faster. The excretory system is affected positively by physical activity by increasing how much air you inhale and exhale. The muscular system is affected positively by physical activity by improving muscle strength.

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Can you Briefly describe the physiological process of nutrition respiration and excretion in a sponge?

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