Excavata
Excavata is a major supergroup of unicellular organisms that are classified under the domain of Eukaryotes. They are characterized by an excavated feeding groove on one side of the cell body. The classification of Excavata, however, is still under debate among scientists.
Characteristics[edit | edit source]
Excavata are primarily identified by the presence of an excavated feeding groove. This groove is not a universal characteristic among all members of this group, but it is a common feature. The cells of Excavata are typically flagellate, meaning they possess one or more whip-like appendages called flagella.
Classification[edit | edit source]
The classification of Excavata is controversial. Some biologists consider it a kingdom, while others regard it as a supergroup. The group was proposed by Thomas Cavalier-Smith in 2002. It contains a variety of free-living and symbiotic forms, and also includes some important parasites of humans.
Subgroups[edit | edit source]
Excavata is divided into several subgroups, including Diplomonadida, Parabasalia, and Euglenozoa. These groups are distinguished by their unique morphology and other cellular characteristics.
See also[edit | edit source]
References[edit | edit source]
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