Biology

Many bacteria are harmful to human beings, plants, and other organisms, but there are also a good number of bacteria that are beneficial. Bacteria play…

Escherichia coli (E. coli) bacteria normally live in the intestines of people and animals. Most E. coli are harmless and actually are an important part…

Structure of E. coli bacteria. Shape: minute and rod-like Size: Length, 2 – 4 m; width, 0.5-1 m Characteristics: 1) They are gram-negative, ie they…

Characteristics of the Kingdom Monera: 1) They are microscopic, and unicellular organisms 2) Nuclear material is present in the cell but nucleolus and nuclear membrane…

The word ‘virus’ is from the Latin word meaning “poisonous fluid” or “noxious liquids”. A virus is a small infectious agent that can reproduce only inside…

A virus is a sub-microscopic element that can contaminate living cells. They are non-cellular organisms, which made up of genetic material and protein that can…

Whittaker proposed a five kingdom classification in 1969 He included all the cellular organisms in five kingdoms. such as-Monera, Protocusta, Plantae, Fungi and Animalisa. Later…

Characteristics of kingdom Monera: 1) They are unicelluar, filamentous, colonial or mycelia 2) The cell has nuclear-matenal but has no nucleolus and nuclear membrane 3)…

Definition: The blue-green algae which are a little bit larger than bacteria are known as cyanobacteria. Cyanobacteria Microscopic Characteristics of Cyanobacteria: They are bluish because…

ICBN is the International Code of Botanical Nomenclature or the principles of the naming of different plants that are internationally accepted. It is the set…