WebThe flatworms are acoelomate organisms that include many free-living and parasitic forms. The flatworms possess neither a lophophore nor trochophore larvae, although the larvae of one group of flatworms, the Polycladida (named after its many-branched digestive tract), are considered to be homologous to trochophore larvae. WebFlatworms range in length from about 1 millimeter (0.04 inches) to more than 20 meters (66 feet). They have a flat body because they do not have a coelom or even a …
Acoelomata - Definition, Examples, vs Pseudocoelomate
WebChoanocytes Capture food particles out of the water Solid worms that lack a body cavity are known as acoelomates A scientist is studying some developing eggs from an ocean sample. The early embryos have divided only a few times, and all cells look identical. WebJun 8, 2024 · Annelids show the presence of a true coelom, derived from embryonic mesoderm and protostomy. Hence, they are the most advanced worms. A well-developed and complete digestive system is present in earthworms (oligochaetes) with a mouth, muscular pharynx, esophagus, crop, and gizzard being present. henni kristianus
Coelomate definition of coelomate by Medical dictionary
WebMar 22, 2010 · A coelom is a fluid filled cavity within the mesoderm, it can be seen as the digestive track of an earthworm. Coelomic fluids assist in locomotion and regulation of fluid transfer through the... WebCoelomate definition, having a coelom. See more. Click for a side-by-side comparison of meanings. Use the word comparison feature to learn the differences between similar and … WebSpecialized cells of sponges that function to trap small food particles. B) Cells of sponges that make water move through the organism. C) Cells that make up the gelatinous layer in sponges. D) Cells that form spicules in sponges. E) Both answers A and B are correct. henni lehtiranta