going to the sun without protection repeated times causes freckles. Belive me my face is full of them.
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Human subject research is systematic, scientific investigation that can be either interventional (a "trial") or observational (no "test and Human subject research can be either medical (clinical) research or non-medical (e.g., social science) research.
Hello! please mark me brainliest if i’m correct
Metabolism is the process by which a cell converts nutrients into energy or materials. The conversion of nutrients into energy is called catabolism. For example, glucose is the cell's main source of energy.
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La sangre es un fluido corporal especializado. Tiene cuatro componentes principales: plasma, glóbulos rojos, glóbulos blancos y plaquetas. La sangre tiene muchas funciones diferentes, que incluyen: transportar oxígeno y nutrientes a los pulmones y los tejidos.
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