2018年6月8日 · Turbellarians that reproduce sexually are hermaphroditic — sperm from one animal will fertilize eggs from another, and the eggs then hatch into small turbellarians. When …

Turbellarians use both asexual and sexual reproduction. Asexual (ay-SEK-shuh-wuhl) means without and sexual means with the uniting of egg and sperm for the transfer of DNA from two …

Turbellarians are hermaphroditic and their sexual reproductive systems are quite complicated. The male system may have one, two, or multiple testes that drain via sperm ducts that may …

2018年6月8日 · Most turbellarians live in water, either fresh or salt water. A few species live on land in damp habitats like leaf litter. Turbellarians reproduce by fission and regeneration, or …

The fertilized eggs usually produce a small worm, although sometimes larvae are produced. The majority of turbellarians are carnivores. Planarians. Probably the most familiar Turbellarians …

turbellarian: see Platyhelminthes; planarian. Source for information on turbellarian: The Columbia Encyclopedia, 6th ed. dictionary.

Acoela(Acoels) Phylum PlatyhelminthesClass AcoelaNumber of families 20Thumbnail description Tiny marine wormlike metazoans; the most primitive living animals with bilateral symmetry …

2018年6月11日 · Trematodes have simple sensory organs around the mouth, but do not have some of the more complex sensory organs found in other flatworms, such as the eye spots of …

turbinal bones (turbinates) In Mammalia, delicate, scroll-like bones, covered with mucous membrane, situated in and subdividing the nasal cavity.

Monogenea(Monogeneans) Phylum PlatyhelminthesClass MonogeneaNumber of families 53Thumbnail description Flatworm parasites that live mainly on fish skin and gills, with a …