Cells continually divide to make more cells for growth and repair. Various
organs and tissues function to serve the needs of cells for food, air,
and waste removal.
NSES Content Standard C
Life Science: Structure and function in living systems Grades 5-8, page 156 Cells carry on the many functions needed to sustain life. They grow and divide, thereby producing more cells. This requires that they take in nutrients, which they use to provide energy for the work that cells do and to make the materials that a cell or an organism needs. NSES Content Standard C
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