LIFE SCIENCE

Detailed explanation-1: -Bacteria and archaea primarily reproduce using binary fission. One cell simply splits into two identical cells. If circumstances are right, some bacteria can split in just 20 minutes. After ten hours, one bacterium cell can divide into a billion bacteria cells.

Detailed explanation-2: -Most bacteria rely on binary fission for propagation. Conceptually this is a simple process; a cell just needs to grow to twice its starting size and then split in two.

Detailed explanation-3: -There is no sexual reproduction of any kind in the archaea. However, just like bacteria, archaea does have parasexual recombination. Archaea produces conjugation pili. Note: It was first thought that most of the archaea were extremophiles, existing at the environmental limits of the abiotic factor range.