Everything about Acoelomorpha totally explained
The
Acoelomorpha are a
phylum of animals with
planula-like features and formerly considered to be in
Platyhelmintha, but recently classified by Jaume Baguñà and Marta Riutort as a separate phylum,
basal among the
Bilateria. The Acoela are very small
flatworms that don't have a
gut. Digestion is accomplished by means of a
syncytium that forms a
vacuole around ingested food. There are no
epithelial cells lining the digestive vacuole. All other bilateral animals have a gut lined with epithelial cells. As a result, the acoels appear to be solid-bodied (
a-coel, or
no body cavity). Acoels are almost entirely
marine, living between grains of
sediment, swimming as
plankton, or crawling on
algae. Acoels have a
statocyst, which presumably helps them orient to gravity.
Further Information
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