Dec 5, 2014 — If cells are the main structural and functional unit of an organism, why are they so small? ... The answers to these questions lie in a cell's need for fast, easy food. ... the functions that each cell has, confirming the structure-function relationship seen throughout biology. ... BIO.107 (Variation in Cells - Biology).. BIO.B.1.1 – Describe the three stages of the cell cycle: interphase, nuclear division, cytokinesis. ... D. The cell membrane pinches inward to div
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