NettetThis phylum is comprised of seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda. Class Aplacophora (“bearing no plates”) includes worm-like animals living mostly on deep ocean bottoms. These animals lack a shell but have aragonite spicules on their skin. NettetIt is a member of the class Hirudinea. These leeches are seen in swamps, ponds and slow-flowing streams. It is sanguinivorous (lives on blood meal) and ectoparasitic in nature. 2. External Structures of Leech: ADVERTISEMENTS: Body …
Medicinal leech annelid Britannica
NettetPhylum Chordata The Chordates possess the following characteristics: They are bilaterally symmetrical, triploblastic with an organ-system level of classification. They possess a notochord and a nerve cord. The circulatory system is closed type. Phylum Chordata can be divided into the following sub-phyla: Urochordata Cephalochordata … NettetWith an estimated 22,000 species, the phylum is morphologically diverse and comprises of four main classes. These include: · Polychaeta (also known as polychaetes and include bristle worms) · Oligochaeta (Earthworms) · Hirudinea (Leeches) · Archiannelida (E.g. Polygordius) Characteristics l-thyroxin 88 5
Class Hirudinea - Chebucto
Nettetmedicinal leech, any of certain leech species (phylum Annelida), particularly Hirudo medicinalis, H. verbana, and H. orientalis, once used in the treatment of human … Nettetleech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, which contains the mouth, at the anterior end of the body and a large sucker located at the posterior end. All leeches have 34 body segments. Are leeches amphibians? NettetLets first take a look at the leech using the classification system that some people may recognize from their high school biology class-- Linnaean Taxonomy. Domain: Eukarya … jdm bathrooms