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Rotifer

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Rotifer
Scientific Classification
Classes
  • Seisonoidea
  • Bdelloidea
  • Monogononta

Rotifera is a phylum in the Kingdom Animalia of the biological classification system known as the Linnean Taxonomic Hierarchy.

The group consists primarily of free-living animals less than 1 mm long. Most rotifers have fewer than 1000 cells, but they have sensory organs, ganglia, muscles, structures for feeding and swimming, and a digestive system. All Rotifers have a ciliated head structure, called the corona, which they use to feed and move, and a muscular mastax, which they use to process the food.

Rotifera species employ either sexual reproduction, asexual reproduction, or both.

Evolution and Rotifers

It has been illustrated that, contrary to old-earth evolutionary assumptions, Rotifers are actually an example of rapid evolution.[1]

The rapid evolution article was used by evolutionary biologist Peter Turchin as an example of the flawed methodology of evolution. "Ecologists studying population dynamics prefer not to bother with the possibility of evolutionary change affecting their study organisms," Turchin writes. "But [the study] decisively demonstrates that this simplification might no longer be tenable."[2]

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