- Prokaryotes Vs. Eukaryotes
- Five Kingdom Classification
- Advantages of the Five Kingdom Classification
- Disadvantages of the Five Kingdom Classification
Carolus Linnaeus placed all living organisms into two kingdoms; Plantae and Animalia. The two-kingdom classification was later found to be inadequate because it places organisms with a true nucleus (eukaryotes) with those without a true nucleus (prokaryotes).
Prokaryotes Vs. Eukaryotes
|1.||No distinct nucleus.||Distinct nucleus present.|
|2.||No nuclear membrane.||Nuclear membrane present.|
|3.||Nuclear materials scattered on|
|Nuclear materials not scattered|
on the cytoplasm.
|Membrane bounded organelles|
|5.||Exist only in simple forms.||Exist in complex forms.|
|6.||They are primitive.||They are more advanced.|
|7.||Bacteria and blue-green algae|
are examples of prokaryotic cells.
|Fungi, plant and animal cells are |
examples of eukaryotic cells.
Green photosynthetic plants were also placed with non-green plants.
Under the basis of the difference between eukaryotes and prokaryotes cells, as well as the mode of nutrition, scientist R.H Whittaker proposed the five kingdom classification, in 1969.
Biologists now favour classifying organisms using the five-kingdom classification.
The five kingdoms are;
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