3. In addition to these three parts, many mollusks show cephalization and have a head region with eyes and other sense organs. Are bivalves protostomes or deuterostomes? Most are motile when young but become sessile such as oysters. Is their digestive tract complete or incomplete? Their body cavity is … explain their answer. In the simplest sense, cephalization means having a head. Do bivalves show cephalization? how do bivalves move. What form of courtship do gastropods use? 19. On the other hand, the Cnidaria display radial symmetry and the Porifera exhibit no symmetry. As for the original question I would say very likely not, they can respond to stimulus but their response probably would not be characterized as "feeling pain". 10. 11. the body of bivalves. What are siphons and what is their purpose? Bivalves. 9. Do bivalves show cephalization? How can you distinguish a mussel from a clam. Adults are usually sessile, but the larva or _____ is free-swimming. Do bivalves show cephalization? Cephalization is a characteristic feature of the Bilateria, a large group containing the majority of animal phyla. These have the ability to move, using muscles, and a body plan with a front end that encounters stimuli first as the animal moves forwards, and accordingly has evolved to contain many of the body's sense organs, able to detect light, chemicals, and often sound. Starfish are one of the few groups of animals, along with jellyfish and sponges, that don't show cephalization. 5. Home » Our Work » how do bivalves move. A clam has an open circulatory system which means that blood is pumped out of the heart and RP ... Snails are bivalves, and crayfish are chelicerates. Members of this class have two-part shells that are hinged and closed by powerful muscles. Why are they called bivalves? 11. What are siphons & what is their purpose? 2. But mussels are cheaper, not to mention—in this writer’s opinion—generally tastier and easier to love.) How do you find average speed; Question about blood pressure medicine..10 points!.. As mollusks develop from a How do bivalves move? Trocophore 6. Are bivalves protostomes or deuterostomes? How do bivalves move? Adults are usually sessile, but the larva or _____ is free-swimming. How can you distinguish a mussel from a clam? Do bivalves show cephalization? Explain your answer. c. have well-developed nervous systems. 6. Explain your … Continue reading "Clam Dissection Questions" Are bivalves protostomes or deuterostomes? 10. Grant C. Numerade Educator 02:08. Describe the body of bivalves. Learn more about cnidarians in this article. What are siphons & what is their purpose? Answer: Cephalization is the concentration of sense organs, nervous control, etc., at the anterior end of the body, forming a head and brain, both during evolution and … 20. 16. 6. Their body cavity is called the _____ cavity. Why are they called bivalves? 10. Some bivalves such as scallops are capable of swimming quite energetically into maturity. The class Bivalvia consists of clams, oysters, mussels, and scallops. 4. planarian cephalization is developed.. ... Clams are considered to be a bivalve mollusc and are part of the mollusc family. 11. List the three layers of a mollusk shell. Are bivalves protostomes or deuterostomes? 8. b. have well-developed reproductive systems. This phylum is the first phylum to display jointed walking legs and show appendage formation. Why are they called bivalves? 10. 15. How can you distinguish a mussel from a clam? What is torsion? Bookmark File PDF Answer Key For The Clam Dissection Questions leaves. explain their answer. How do bivalves move? ... Incurrent siphon carries water into the clam and the excurrent siphon where water wastes and water Page 5/11. Do bivalves show cephalization? Describe the body of bivalves. How can you distinguish a mussel from a clam? 9. Do bivalves show cephalization? Describe a clam’s circulatory system. Do bivalves show cephalization? why are they called bivalves. 5. Explain your answer. why are they called bivalves. 2. Siphons is where where water exits and enters the clam 8. What are siphons & what is their purpose? 6. 4. Do bivalves show cephalization? Do bivalves show cephalization? 9. Do bivalves show cephalization? I forgot how to do it p.. How do I find the X values of "e^x - e^(-x) … No because they don't have a head 5. Adults are usually sessile, but the larva or _____ is free-swimming. Cnidarian, any member of the phylum Cnidaria (Coelenterata), a group of more than 9,000 species of mostly marine animals. Explain your answer. The arthropods use tracheids, or book lungs for respiration, these organisms also have a full digestive system and pronounced cephalization. 4. 8. Their … In zoology, cephalization is the evolutionary trend toward concentrating nervous tissue, the mouth, and sense organs toward the front end of an animal. The division of the body into distinct areas seems to have allowed diversification to occur because there are many different types of mollusks adapted to various ways of life. Do bivalves show cephalization? How can you distinguish a mussel from a … Are bivalves protostomes or deuterostomes? How can you distinguish a mussel from a clam? How can you distinguish a mussel from a clam? Isotopic abundance, percentage; Please help me translate this into less scientific.. 10 POINTS- Quick question? They show cephalization because they have a head and are cephalapods. Explain your answer. In what two ways do planarian show cephalization? Adults are usually sessile, but the larva or _____ is free-swimming. The group includes corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans. and close a bivalves shell? Explain your answer. 7. What are siphons & what is their purpose? 4. Explain your answer. The mollusks that have a hinged, two-part shell joined by strong muscles are called bivalves. 3. How do bivalves move? Adults are usually sessile, but the larva or _____ is free-swimming. 5. 8. Like all mollusks, clams have a mantle. How do bivalves move? 21. Do bivalves show cephalization? d. are free-living. The seventh phylum is phylum arthropoda, this phylum is largely composed of insects. Cephalization is the process in animals by which nervous and sensory tissues become concentrated in the "head." Explain your answer. 14. Explain your … Continue reading "Clam Dissection Questions" Clam Dissection Questions - BIOLOGY JUNCTION Clam Dissection Introduction The phylum Mollusca includes snails, clams, chitons, slugs, limpets, octopi, and squid. Adults are usually sessile, but the larva or _____ is free-swimming. The presence of shells in this group has yielded an impressive fossil record. Do bivalves show cephalization? 7. What is the function of a statocyst? How do bivalves feed? Cephalization definition is - a tendency in the evolution of organisms to concentrate the sensory and neural organs in an anterior head. 4. Is their digestive tract complete or incomplete? Is their digestive tract complete or incomplete? Not all bivalves are sessile. 11. Fully cephalized organisms have a head and brain, while less cephalized animals display one or more regions of nervous tissue.Cephalization is associated with bilateral symmetry and movement with the head facing forward. Why are they called bivalves? Is their digestive tract complete or incomplete? Explain your answer. Body organs make up the _____ mass and are protected Do bivalves show cephalization? e. are generally microscopic. 7. 7. 6. 6. 13. Explain your … Continue reading "Clam Dissection Questions" Clam Dissection Questions - BIOLOGY JUNCTION Clams are soft-bodied animals whose internal organs are protected by two shells. Are bivalves protostomes or deuterostomes? 7. 9. Their … Adults are usually sessile, but the larva or _____ is free-swimming. Explain your … Continue reading "Clam Dissection Questions" Clam Dissection Questions - BIOLOGY JUNCTION Start studying Clam dissection questions. Are bivalves monoecious or dioecious? Animals II: The Protostomes and Deuterostomes - Unit 19. segments that are fused together; regional formation of body parts that are specialized and highly adaptive; tagmata are involved in locomotion (thorax), sensation and feeding (head), or visceral activities of … How can you distinguish a mussel from a clam? Explain your … Continue reading "Clam Dissection Questions" Clam Dissection Questions - BIOLOGY JUNCTION Clam Dissection Topic The external and internal anatomy 12. Explain your answer. What are siphons & what is their purpose? Explain your answer. Explain your answer. Do bivalves show cephalization? Give the kingdom, phylum, and class for the clam. Our Work. 0000087280 00000 n 0000009544 00000 n Although cephalization is associated primarily with bilaterally symmetrical species, even some of the more primitive, radially symmetrical animals show some degree of cephalization. a. show cephalization. What are siphons & what is their purpose? Do bivalves show cephalization? The bivalves have no head, no radula, and little cephalization, as … 8. 5. ... Incurrent siphon carries water into the clam and the excurrent siphon where water wastes and water leaves. Explain your answer. 6. 3. 8. Give a benefit and a problem with torsion? Cephalization. These three animals pull their shells closed by contracting powerful muscles near the hinge. Explain your answer. What are siphons & what is their purpose? The Echinodermata are unique, in that they display bilateral symmetry in their larval stage, and a special form of fivefold radial symmetry, pentamerism in their adult life stage.. 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