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- Cells.
- Cells are the basic components of all living things, and the human body is made up of approximately 10 trillion cells. Cells contain complex biochemical systems that use energy sources to power cellular activities, such as growth, movement, and reaction to environmental changes or external stimuli. The information required to assemble the enzymatic and structural molecules involved in these activities is stored in a cell's deoxyribonucleic acid (DNA) and is duplicated and passed on in cell division....
- Salem Press Encyclopedia of Science, 2023. 3p.
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