Welcome: Biology: Animal Cells
Description: The cell is the basic unit of life. A cell's size and shape can vary. For instance, when you hold a chicken egg, you are actually holding one single cell. The largest animal cell by weight is the ostrich's egg, which can weigh over three pounds. Most cells, though, are very small, or microscopic. You might then ask, "What is life?" The answer is somewhat complicated. These are the basics of what makes life: it can grow, change, and reproduce. Cells are different from ordinary proteins, in that they can replicate themselves and evolve.
Grade Level: 9-12
Keywords: Cell Biology Structure Animal Protein Replicate Microscope
Author(s): Shelby Shackelford