Page 23 - Science E-Book Prep.3 2024-2025 1st term_Neat unit 3,4
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Science Department
 Prep.3

      1- Binary fission:

- It occurs in unicellular living organisms as:
- Protozoans such as amoeba, paramecium and euglena
Simple algae.
- Bacteria.

How the binary fission does occur?

 1. The nucleus is divided by mitosis.
 2- Then the cell (which represents the body of the
 unicellular organism) splits into two cells each one becomes a
 new individual.

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