Human epithelium contains a layer of cube-shaped cells. If the length, height, and width of such a cell is 1 micrometer (um), what is the surface area of its
cell membrane?
O A. 6 pm
B. 3 um
O C. 6 um?
O D. 3 um

answer; ///i believe the answer is (antioxidant);

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

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