Question

Give a brief note on fourkingdom classification

Answer 1

our kingdoms namely,

Monera – Prokaryotic organisms with incipient nucleus such as bacteria, cyanobacteria

Protista – Having a true nucleate organisms

Plantae – Having photosynthetic and multicellular organisms

Animalia – Having non-photosynthetic and multicellular organisms

The main drawback of this system is that fungi are not properly placed.

Answer 2

Phenetic classification or Numberical classification is based upon the similarities and dissimilarities among organisms.

Special Points:-

• It is based upon all the observable characters and easily carried out using computers.
• In this classification system numbers and codes are assigned to all the characters.
• Organisms with most of the similarities are placed in a particular group of their kind.
• All the characters are given equal importance and so hundreds of characters can be considered.
• So in this classification importance is not given to any particular character instead all characters are considered equally important.