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Classification of Organisms

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  • Lehius is considered as the father of the classification of the living world.
  • Five kingdoms were proposed by Robert Weather.

  1. Monera Kingdom
  • These are the prokaryotic organisms. Organized nuclei and cell parts not found in these organisms. 
  • Depending on the level of nutrition, it can be both autotrophic or heterotrophic. 
  • Among these, reproduction occurs by conjugation.
  • Mycoplasma, the smallest cell, also survives without oxygen.
  • All bacteria come into this kingdom. Examples are indigo green algae or cyanobacteria, spherical coccus, bacilli, spirilla, vibrio, etc.

2. Protista Kingdom

  • It includes unicellular, eukaryotic organisms. Organized nucleus and membrane-bound cells are found in their cells. 
  • In this class of organisms, a structure called cilia or flagella is found for movement. 
  • They are both autotrophic and heterotrophic. 
  • Reproduction occurs by gamete fusion and conjugation. 
  • Examples are unicellular algae Paramecium, Amoeba, Euglena, Diatom, Protozoa etc.

3. Fungi Kingdom

  • These are heterogeneous and eukaryotic organisms. 
  • They absorb nutrition from decaying organic material hence they are also known as Saprophyte. 
  • Some fungi depend on live plants and animals for exploitation, called parasites. 
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  • The fungi are fibrous. It has a structure similar to a long thin thread called a fungus. Its net is called a fungus trap. 
  • Some fungal fibers are continuous tubules that have a multicellular, cytoplasm filled with cytoplasm. They are called cellular fungal fibers. 
  • The cell wall of the fungus is made up of chitin and polysaccharide. 
  • Fungi include fungal reproduction, asexual reproduction, asexual reproduction.
  • Examples are mushrooms, mushrooms, yeast.

4. Plant Kingdom: Click Here

5. Animal Kingdom: Click Here

Some Other Animal

  1. Viruses 
  • Both DNA and RNA are not found together in any virus. A virus will have either DNA or RNA. Plant viruses have a threaded RNA. 
  • Animal viruses have one or double-stranded RNA or DNA.

2. Viroids: lack RNA and protein coating.

3. Lichen: It originates from the symbiotic saliva of algae and fungi. Lichen is used as an indicator of pollution.

 

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