who discovered the cell theory? What are the 3 parts of the cell theoy?

http://porpax.bio.miami.edu/~cmallery/150/unity/cell.text.htm

The cell theory, which describes the basic unit of life, was formulated by multiple scientists who made significant contributions. However, three scientists are specifically credited with the development of the cell theory: Matthias Schleiden, Theodor Schwann, and Rudolf Virchow.

To find the answer to your first question, "Who discovered the cell theory?" you can follow these steps:

1. Start by searching for "cell theory" on a reliable search engine such as Google.
2. Look for credible sources such as scientific websites, online encyclopedias, or academic journals.
3. Read the information provided by these sources, which will likely mention the three scientists mentioned above: Matthias Schleiden, Theodor Schwann, and Rudolf Virchow.

Now, coming to the second part of your question, the cell theory consists of three main principles:

1. Cells are the basic units of life: This principle states that all living organisms are composed of one or more cells. Cells are considered the fundamental structural and functional units of life.

2. All living organisms are made up of cells: According to this principle, all organisms, such as plants, animals, fungi, and microorganisms, are composed of cells. Cells are the building blocks of complex living structures.

3. Cells arise from pre-existing cells: This principle asserts that cells can only be formed by the division of pre-existing cells. In other words, new cells are produced as a result of cell division.

By following the same process mentioned earlier, you can verify this information by searching for "parts of the cell theory" or "cell theory principles" on reputable sources, which will provide more in-depth explanations.