Cell Anatomy
Life is both wonderful and majestic. Yet for all of its majesty, all organisms are composed of the fundamental unit of life, the cell. Cells are the basic building blocks of all living creatures. However, they didn't always exist as cells. Each cell is formed from a variety of molecules that can be classified into several major families such as Nucleic Acids and Amino Acids. Through cycles of selection from environmental pressures, these molecules come together to form the first primitive cell, for the sole purpose of ultimate survival.
The cell is the basic unit of life. All organisms are made up of cells (or in some cases, a single cell). Most cells are very small; most are invisible without using a microscope. Cells are covered by a cell membrane and come in many different shapes. The contents of a cell are called the protoplasm.
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