Class 9 / Biology / Diversity in Living Organisms / The Hierarchy of Classification Groups

WHITTAKER CLASSIFICATION

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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Class 9 / Biology / Diversity in Living Organisms / The Hierarchy of Classification Groups

MONERA

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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Class 9 / Biology / Diversity in Living Organisms / The Hierarchy of Classification Groups

PROTISTA

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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Class 9 / Biology / Diversity in Living Organisms / The Hierarchy of Classification Groups

FUNGI

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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Class 9 / Biology / Diversity in Living Organisms / The Hierarchy of Classification Groups

PLANTAE

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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Class 9 / Biology / Diversity in Living Organisms / The Hierarchy of Classification Groups

ANIMALIA

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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