Webmouth - The cavity at the front of the earthworm through which the worm eats. The first segment, which contains the mouth, is called the peristomium. paired setae - tiny bristles (or hairs) that occur in pairs on most … WebFeb 24, 2024 · Earthworms are cylindrical in shape and brown in the color body. Earthworms have a segmented body. Earthworm body is divided into two sides i.e., dorsal and ventral sides. The dorsal side of the earthworm has a dark line of blood vessels, ventral side of the earthworm has genital openings.
Inside of an earthworm — Science Learning Hub
WebThe first body segment is called the peristomium. The peristomium contains the mouth. Clitellum Adult (sexually mature) earthworms have a distinct swelling called a clitellum. It is located about one-third of the way down the earthworm. The clitellum is often white or orange in colour. WebAn earthworm is an invertebrate belonging to the phylum Annelida. They are found in the soil and make it fertile. They feed on dead organic matter. Pheritima and Lumbricus are the common earthworms found in India. … eve\u0027s flower shop fairburn ga
Earthworm Dissection Guide Anatomy HST Learning Center
Webcarries blood toward the posterior end of an earthworm cuticle non-chitinous outer layer setae external bristles for locomotion mouth intake of food prostomium small, liplike extension over dorsal portion of mouth pharynx the passage from the mouth to the esophagus esophagus muscular tube connecting the mouth to the crop crop storage … WebThe phylum Platyhelminthes includes flatworms. “Platy” means flat and “helminth” means worm. They can be divided into three major categories: (1) Turbellaria: free-living flatworms, like Planarian (in freshwater) and Divided flatworm (in marine); (2) Trematoda: parasitic flukes that Infect internal organs of a host. Ex. Schistosoma fluke causes … WebBody Anatomy. The body of the earthworm is covered externally by a thin noncellular cuticle. This is followed by an epidermal layer, two muscle layers, and inner coelomic … eve\u0027s generational formula