What does archezoa mean?
Definitions for archezoa
archezoa
This dictionary definitions page includes all the possible meanings, example usage and translations of the word archezoa.
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Wikipedia
Archezoa
Archezoa was a kingdom proposed in the 20th century by Thomas Cavalier-Smith (1942–2021), and was believed to encompass eukaryotes which did not have mitochondria (and are therefore amitochondriate) or peroxisomes (e.g. Giardia). The category was dropped after it was discovered that all the amitochondriates were descendants of eukaryotes with mitochondria that had lost them.
Wikidata
Archezoa
Archezoa was a kingdom proposed by Thomas Cavalier-Smith for eukaryotes that diverged before the origin of mitochondria. At various times, the pelobionts and entamoebids, the metamonads, and the Microsporidia were included here. These groups appear near the base of eukaryotic evolution on rRNA trees. However, all these groups are now known to have developed from mitochondriate ancestors, and trees based on other genes do not support their basal placement. The kingdom Archezoa has therefore been abandoned. Archaezoa is composed of two kingdoms of protists, Kingdom Diplomadida and Kingdom Parabasala. These 2 kingdoms are grouped together because they lack mitochondria. The Archaezoa hypothesis suggests that these two kingdoms originally had mitochondria, but lost them before mitochondria became symbionts of protists. This lineage is believed to be the proof of Eukaryotic Endosymbiosis. Molecular evidence indicates that Archaezoa have the genetic marker of mitochondria in their nucleus that suggests they had and then lost mitochondria. Both of these kingdoms are parasites, as they have to acquire ATP from some source.
Numerology
Chaldean Numerology
The numerical value of archezoa in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of archezoa in Pythagorean Numerology is: 5
Translations for archezoa
From our Multilingual Translation Dictionary
- archezoaIndonesian
- ஆர்க்கிசோவாTamil
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"archezoa." Definitions.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.definitions.net/definition/archezoa>.
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