WebA major invertebrate phylum of the animal kingdom, the annelids number more than 9,000 species distributed among three classes: the marine worms (Polychaeta), which are divided into free-moving and sedentary, … Web8 de mai. de 2024 · A unique feature of arthropods is the presence of a segmented body with fusion of certain sets of segments to give rise to functional segments. Fused …

11.9: Annelids - Biology LibreTexts

WebFlatworms have three embryonic tissue layers that give rise to surfaces that cover tissues (from ectoderm), internal tissues (from mesoderm), and line the digestive system (from endoderm). ... A significant difference between leeches and other annelids is the development of suckers at the anterior and posterior ends and a lack of chaetae. Webhow is the digestive process different in free-living flat worms compared to parasitic flatworms? free-living flatworms have a more complex digestive system than parasitic flatworms describe the free-living flatworms digestive system. food is digested and nutrients pass through gut and diffuse to other body tissues physics form 1 revision questions

How are annelid worms different from flatworms and roundworms?

http://www.actforlibraries.org/what-are-the-differences-between-flatworms-roundworms-and-segmented-worms/ WebAnnelid. The annelids / ˈænəlɪdz / ( Annelida / əˈnɛlɪdə /, from Latin anellus, "little ring" [1] [a] ), also known as the segmented worms, are a large phylum, with over 22,000 extant species including ragworms, … WebAnnelids differ from flatworms and roundworms by how they digest their food. An annelid has a complete digestive tract with 2 openings that can process food and absorb nutrients as the meal moves from mouth to anus. A flatworm absorbs their nutrients through a muscular tube that projects through the mouth and sucks in food. Sets with similar terms physics for life science