cell
A cell is the basic structural and functional unit of all living organisms, acting as the smallest unit of life that can replicate on its own. Every living thing, from single-celled bacteria to complex animals and plants, is made of cells. Cells have three main components: a cell membrane, a nucleus, and cytoplasm. They also contain organelles, which are specialized structures that perform specific functions like creating energy, making proteins, and storing genetic material.
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