The Cell Theory
The Cell Theory
1. All living things are made of cells.
2. Cells are the basic units of life.
3. Cells come only from other cells.
Protocells:
One theory of the origins of cells states that the first life on earth consisted of several types of tiny protocells, cell-like organisms. These organisms were able to survive and reproduce in a very limited environment because of their simplicity. Over time, some of these protocells came together and shared their …
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