Answer: The lipid bilayer forms a barrier to molecules because it consists of closely-packed molecules with long nonpolar hydrocarbon chains.
Explanation:
Cellular organizations
reproduction
metabolism
homeostasis
heredity
response to stimuli
growth and development
adaptation through evolution
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Trace metals, like iron and magnesium, are considered _Building blocks of molecule__________________, while organic compounds, like vitamins, are considered________Complex Molecule___________
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The answer is A, convergence.
