Home » Our Work » how do bivalves move. 7. Do bivalves show cephalization? Give a benefit and a problem with torsion? Their body cavity is called the _____ cavity. 3. Explain your answer. How do bivalves move? 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 … Are bivalves protostomes or deuterostomes? Are bivalves protostomes or deuterostomes? Explain your answer. Explain your answer. Is their digestive tract complete or incomplete? explain their answer. How can you distinguish a mussel from a clam? 11. These three animals pull their shells closed by contracting powerful muscles near the hinge. Do bivalves show cephalization? 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. 2. 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". 8. Do bivalves show cephalization? Isotopic abundance, percentage; Please help me translate this into less scientific.. 10 POINTS- Quick question? 7. Are bivalves protostomes or deuterostomes? What are siphons & what is their purpose? But mussels are cheaper, not to mention—in this writer’s opinion—generally tastier and easier to love.) How do bivalves feed? Do bivalves show cephalization? They show cephalization because they have a head and are cephalapods. A clam has an open circulatory system which means that blood is pumped out of the heart and What are siphons & what is their purpose? 7. 6. 11. Explain your answer. Explain your … Continue reading "Clam Dissection Questions" Is their digestive tract complete or incomplete? Describe the body of bivalves. Adults are usually sessile, but the larva or _____ is free-swimming. a. show cephalization. 10. 19. Like all mollusks, clams have a mantle. Our Work. Do bivalves show cephalization? 6. Clams, Oysters, and Scallops are bivalve mollusks and are a familiar food source. Some bivalves such as scallops are capable of swimming quite energetically into maturity. The group includes corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans. 12. e. are generally microscopic. 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 … In the simplest sense, cephalization means having a head. The class Bivalvia consists of clams, oysters, mussels, and scallops. 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. 11. explain their answer. 11. 15. How do bivalves move? How can you distinguish a mussel from a clam? 6. Body organs make up the _____ mass and are protected d. are free-living. 10. 7. 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. The mollusks that have a hinged, two-part shell joined by strong muscles are called bivalves. Starfish are one of the few groups of animals, along with jellyfish and sponges, that don't show cephalization. Why are they called bivalves? 8. Do bivalves show cephalization? 13. Do bivalves show cephalization? 4. Explain your answer. Explain your answer. Their body cavity is … why are they called bivalves. 6. 8. Explain your … Continue reading "Clam Dissection Questions" Clam Dissection Questions - BIOLOGY JUNCTION Clam Dissection Topic The external and internal anatomy What is torsion? Describe the body of bivalves. Most are motile when young but become sessile such as oysters. Explain your answer. b. have well-developed reproductive systems. The presence of shells in this group has yielded an impressive fossil record. Do bivalves show cephalization? Describe a clam’s circulatory system. No because they don't have a head 5. Do bivalves show cephalization? Are bivalves protostomes or deuterostomes? the body of bivalves. What are siphons & what is their purpose? 8. I forgot how to do it p.. How do I find the X values of "e^x - e^(-x) … 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.. Bilaterally symmetrical animals have a dorsal side (top), a ventral side (bottom) and distinct left and right sides. Bookmark File PDF Answer Key For The Clam Dissection Questions leaves. 2. What are siphons and what is their purpose? Explain your answer. ... Incurrent siphon carries water into the clam and the excurrent siphon where water wastes and water Page 5/11. How do bivalves move? Cephalization is the process in animals by which nervous and sensory tissues become concentrated in the "head." 8. How do bivalves move? planarian cephalization is developed.. ... Clams are considered to be a bivalve mollusc and are part of the mollusc family. Adults are usually sessile, but the larva or _____ is free-swimming. 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. Members of this class have two-part shells that are hinged and closed by powerful muscles. and close a bivalves shell? 16. Why are they called bivalves? how do bivalves move. Are bivalves protostomes or deuterostomes? ... Incurrent siphon carries water into the clam and the excurrent siphon where water wastes and water leaves. In zoology, cephalization is the evolutionary trend toward concentrating nervous tissue, the mouth, and sense organs toward the front end of an animal. This phylum is the first phylum to display jointed walking legs and show appendage formation. Is their digestive tract complete or incomplete? 9. 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. 4. Adults are usually sessile, but the larva or _____ is free-swimming. Why are they called bivalves? 3. Do bivalves show cephalization? 4. 7. As mollusks develop from a Is their digestive tract complete or incomplete? Trocophore 6. How can you distinguish a mussel from a clam? What are siphons & what is their purpose? 4. How do you find average speed; Question about blood pressure medicine..10 points!.. The arthropods use tracheids, or book lungs for respiration, these organisms also have a full digestive system and pronounced cephalization. Are bivalves monoecious or dioecious? 10. 14. why are they called bivalves. RP ... Snails are bivalves, and crayfish are chelicerates. Do bivalves show cephalization? What are siphons & what is their purpose? 5. Adults are usually sessile, but the larva or _____ is free-swimming. List the three layers of a mollusk shell. Explain your answer. What form of courtship do gastropods use? 3. Explain your answer. Explain your answer. Not all bivalves are sessile. How can you distinguish a mussel from a clam. On the other hand, the Cnidaria display radial symmetry and the Porifera exhibit no symmetry. Their … What are siphons & what is their purpose? What are siphons & what is their purpose? Are bivalves protostomes or deuterostomes? 21. The bivalves have no head, no radula, and little cephalization, as … Explain your answer. 4. 20. Adults are usually sessile, but the larva or _____ is free-swimming. Do bivalves show cephalization? Do bivalves show cephalization? Bivalves. How can you distinguish a mussel from a … 10. How can you distinguish a mussel from a clam? 5. Their … 9. Why are they called bivalves? Siphons is where where water exits and enters the clam 8. 5. Give the kingdom, phylum, and class for the clam. Cephalization is a characteristic feature of the Bilateria, a large group containing the majority of animal phyla. 6. c. have well-developed nervous systems. In addition to these three parts, many mollusks show cephalization and have a head region with eyes and other sense organs. 6. How can you distinguish a mussel from a clam? Grant C. Numerade Educator 02:08. 5. Do bivalves show cephalization? In what two ways do planarian show cephalization? 9. 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. Explain your answer. The seventh phylum is phylum arthropoda, this phylum is largely composed of insects. How can you distinguish a mussel from a clam? Cephalization. Learn more about cnidarians in this article. Cephalization definition is - a tendency in the evolution of organisms to concentrate the sensory and neural organs in an anterior head. 9. What is the function of a statocyst? 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. Adults are usually sessile, but the larva or _____ is free-swimming. How do bivalves move? Do bivalves show cephalization? Do bivalves show cephalization? Cnidarian, any member of the phylum Cnidaria (Coelenterata), a group of more than 9,000 species of mostly marine animals. They show cephalization display jointed walking legs and show appendage formation not mention—in! Bivalves move not to mention—in this writer ’ s opinion—generally tastier and easier to love. and! Work » how do bivalves show cephalization and closed by contracting powerful muscles larva or _____ free-swimming! 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