Question

unicellular organisms like Amoeba and Paramecium survive as a single cell how​

Answer 1

due to binary fission.. single cell organism are immortal

Answer 2

Answer

Amoebae and paramecia are representatives of the more-complex single-celled organisms. They show signs of being descended from two or more simpler single-celled organisms that merged, combining their individual capabilities to build a cell with greater advantages. But even as protozoans arose from the mergers of simple organisms like bacteria, bacteria themselves persisted........