WebChitons possess a heart and an open blood system, a pair of kidneys that open to the pallial cavity, a simple nervous system with two pairs of lateral nerve cords, and many special minute sensory organs (aesthetes) that pass through the shell valves. Some of … Mollusca is one of the most diverse groups of animals on the planet, with at least … Online exhibits: Geologic time scale: Paleozoic Era. The Cambrian Period. … UCMP Glossary. Browse the UCMP Glossary alphabetically or by volume. … Both groups have a dorsal gonad that opens into the pericardium, a chamber … Suture patterns and lifestyle: The diversity of this suture geometry has inspired … The nervous and circulatory systems are well developed with the concentration of … The nervous system is made up of three pairs of ganglia. These innervate the … Life history & ecology Rudists grew by accretion (or the increase in size by … The nervous system is ladder-like and has weakly developed anterior ganglia. … The Scaphopoda are a distinctive group of molluscs commonly known as the "tusk … WebChiton definition, a mollusk of the class Amphineura, having a mantle covered with calcareous plates, found adhering to rocks. See more.

biology 2 chapter 33 Flashcards Quizlet

WebChitin Polysaccharide that is the main component of the cell walls of fungi Lichen A composite organism composed of fungi and a photosynthetic organsim Mesoglea The gelatinous substance that separates the two cell layers of cnidarians Mycelium Network of hyphae Hyphae Cellular threads that make up a fungal body Metazoa Web- chitons the following that are classes of mollusks - polychaetes - earthworms and leeches the following that are types of annelids - cuticle - a mouth and an anus - simple brain and nerve cords the body organs and structures present in nematodes nematoda cylindrical, unsegmented worms with a pseudocoelom are classified into the phylum fite living centre

Chiton - an overview ScienceDirect Topics

WebFigure 15.25 This chiton from the class Polyplacophora has the eight-plated shell indicative of its class. (credit: Jerry Kirkhart) ... Annelids have a closed circulatory system with muscular pumping “hearts” in the anterior segments, dorsal and ventral blood vessels that run the length of the body with connections in each segment, and ... A chiton creeps along slowly on a muscular foot. It has considerable power of adhesion and can cling to rocks very powerfully, like a limpet. Chitons are generally herbivorous grazers, though some are omnivorous and some carnivorous. They eat algae, bryozoans, diatoms, barnacles, and sometimes bacteria by scraping the rocky substrate with their well-developed radulae. Web-chitons 2. scaphopoda -tusk shells 3. gastropoda-snails and slugs 4. bivalvia-clams. mussels, oysters, scallops 5. cephalopoda ... -open circulatory system-mouth leads to short tubular esophagus which leads to the stomach -digestion takes place in the stomach-stomach empties into the intestine fitel f2200