Which is the movement of nutrients such as ions or small molecules through the cell membrane in order to maintain homeostasis?

Alright well the movement of nutrients is Diffusion which is something that spreads widely or another words scattering

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b.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides