Celler

A cell is the basic building block of all living organisms. It's a tiny, self-contained unit that performs essential functions to sustain life. Each cell has specialized parts, like the nucleus (which controls activities), the cytoplasm (gel-like fluid), and the cell membrane (which protects and regulates what enters or exits). Cells work together to form tissues, organs, and ultimately entire organisms. They can reproduce, grow, and adapt to their environment, making them fundamental units of biology. Understanding cells helps us grasp how living things develop, function, and stay healthy.