BACTERIA
Key points about Monera
1.Monera includes prokaryotic organisms which lack a nucleus and membrane-bound organelles.They
are typically unicellular and reproduce asexually through binary fission.
2.This kingdom represents some of the oldest forms of life,responsible for introducing oxygen to Earth’s
atmosphere via cyanobacteria.
Cyanobacteria
3.Autotrophic organisms once called blue-green algee.
4.Played a crucial role in Earth’s history by producing oxygen,which led to significant ecological changes.
5.Found in diverse habitats,mostyly aquatic.Their rapid growth can harm ecosystems and some species
may pose health risks.
Bacteria
6.Some bacteria are beneficial like E.coil in the gut producing vitamin K.
7.Others are harmful pathogens,causing diseases like cholera,leprosy and meningitis.