WHITTAKER CLASSIFICATION Biologists, such as Ernst Haeckel (1894), Robert Whittaker (1969), and Carl Woese (1977) have tried to classify all living organisms into broad categories, called ki
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MONERA These organisms do not have a defined nucleus or organelles, nor do any of them show multi-cellular body designs. On the other hand, they show diversity based on many other characteristics
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PROTISTA This group includes many kinds of unicellular eukaryotic organisms. Some of these organisms use appendages, such as hair-like cilia or whip-like flagella for moving around. Their mode
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FUNGI These are heterotrophic eukaryotic organisms. Some of them use decaying organic material as food and are therefore called saprotrophs. Others require a living protoplasm of a host or
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PLANTAE These are multicellular eukaryotes with cell walls. They are autotrophs and use chlorophyll for photosynthesis. Thus, all plants are included in this group. Since plants and animals are the
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ANIMALIA These include all organisms which are multicellular eukaryotes without cell walls. They are heterotrophs. Again, we will look at their subgroups given below. 1. Porifera 2.
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