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Proteins can be separated from small molecules and ions through a semipermeable membrane by __________________.
Nutrition
The process by which living organisms receive and process the nutrients necessary for growth, repair, and maintenance of the body.
Natural Selection
The process by which biological traits become either more or less common in a population as a function of the effect on the survival and reproduction of their bearers.
Identical Twins
Genetically identical siblings conceived from the same sperm and egg, sharing 100% of their DNA.
Fraternal Twins
Twins originating from the fertilization of two unique eggs by two separate sperm, making them genetically different from one another.
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