Answer: light is a eletromagnetic wave, no it does not need a medium
Explanation:
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Answer:
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Explanation:
However, the organ systems also work together to help the body maintain homeostasis. For example, the cardiovascular, urinary, and lymphatic systems all help the body control water balance. The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure.
Plasmids are small DNA fragments that occur in many bacterial cells.
