Cell
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The cell is the smallest unit of life capable of independently reproducing itself. It is a small, watery, compartment filled with chemical-based machinery and a complete copy of the organism's genome.
A bacterium is a simple cell without a nucleus to protect its genetic information. A virus requires structures in a cell's cytoplasm to assemble copies of itself. There is no consensus on the exact number of cells in a human body, though the number ranges from 10 to 100 trillion cells.[1]
References
- ↑ Wile, Jay L. Exploring Creation With General Science. Anderson: Apologia Educational Ministries, Inc. 2000