Diffusion is the random movement of molecules or particles from a region of high concentration to a region of low concentration bringing a natural flow in the system. Diffusion ensures that there is a state of equilibrium in the number of molecules in the system.
pylometrics increases muscle strength and can improve coordination, strength, & speed
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there are four trophic levels first are producers then primary consumers then secondary consumers then teritary consumers
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grass - grasshopper - frog - snake - eagle is a simple food chain
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Medications can be tested on the cancer culture before being injected into the patient.
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