The cell cycle is a series of stages of a cell growing and dividing. If the cells did not go through the process the result would be no reproduction. The cells will be shortly lived and die.
Blood carries immune system cells, known as white cells or leukocytes. Some examples of white cells are phagocytes and lymphocytes.
Phagocytes ingest and dissolve pathogens, as well as strange particles or dying cells.
Lymphocytes are divided into T cells, B cells, and natural killer cells (NK). B cells produce antibodies to respond to foreign cells, T cells attack pathogens using enzymes and other non-antibodies responses, while NK cells combat tumors and cells infected by viruses.
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c) growth of the cell and replication of DNA prepare the cell for division
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a regulated movement of the plant hormone auxin known as polar auxin transport.
