WebOctopuses, snails, and chitons are all examples of organisms in the phylum Mollusca Muscular action is responsible primarily for the function of which portion of the mollusc body? Multiple choice question. Head-foot Cephalic sensory Visceral mass … WebWhich of the following statements is NOT correct about nematodes: -There are three layers of tissues in the body. -Nematodes lack circular muscles under the tegument. -The body cavity provides a hydrostatic skeleton. -Nematodes have a smooth unsegmented outside body wall. -Nematodes are all carnivores but may be free-living or parasitic.
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WebMollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (/ ˈ m ɒ l ə s k /).Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species … WebSnails, slugs, and limpets belong to the molluscan class A. Gastropoda. B. Pelecypoda. C. Polyplacophora. D. Aplacophora. E. Cephalopoda. A, gastropoda 9. The 180, counterclockwise twisting of the visceral mass, mantle, and mantle cavity of gastropods is called A. contortion. B. torsion. C. helixing. D. coiling. E. operculating. B, torsion 10.
WebStudy with Quizlet and memorize flashcards containing terms like Mollusca means, What level of organization do mollusc's have?, Molluscs have a two-chambered myogenic heart : and more. ... Class Polyplacophora (Chitons) belong to what phylum. Phylum Mollusca. Class Scaphopoda (toothshells) belong to what phylum. Phylum Mollusca. Umbo. … WebBiol 305 Animal Diversity Mollusc Lab 10. Class Aplacophora: Solenogastres On display are solenogastres, strange worm-like mollusks in the Class Aplacophora. They are found in marine environments, living in sediment or on corals and hydroids. Note how they differ morphologically from most gastropod species: they lack (1) a shell, (2) a flattened foot, …
WebChitons belong to the molluscan class. Polyplacophora. The diversity of body forms and life-styles in the phylum Mollusca is an excellent example of. adaptive radiation. The shell-secreting organ of bivalve mollusks is the. mantle. The tentacle of male cephalopods that is modified for spermatophore transfer is the. WebChitons, snails, clams, and squid belong to this phylum: Mollusca. Which genus of gastropod has been reported to have caused human fatalities? Conus Nudibranchs belong to the class _______ of the phylum Mollusca. Gastropoda Molluscs having two jointed valves or shells belong to the class: Bivalvia. The siphuncle of nautiloids is used for:
WebThere are ______ living species in the phylum Mollusca. About 90,000 The mollusc ______ may be adapted for locomotion, for attachment to substratum, or for a combination of functions. foot Octopuses, snails, and chitons are all …
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 … See more Chitons are marine molluscs of varying size in the class Polyplacophora (/ˌpɒlipləˈkɒfərə/), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized. They are also … See more Shell All chitons bear a protective dorsal shell that is divided into eight articulating aragonite valves embedded in the tough muscular girdle that surrounds the chiton's body. Compared with the single or two-piece shells of … See more Chitons are eaten in several parts of the world. This includes islands in the Caribbean, such as Trinidad, Tobago, The Bahamas, St. Maarten, Aruba, Bonaire, Anguilla and See more Chitons were first studied by Carl Linnaeus in his 1758 10th edition of Systema Naturae. Since his description of the first four species, chitons have been variously classified. They were called Cyclobranchians (round arm) in the early 19th century, and … See more Chitons live worldwide, from cold waters through to the tropics. They live on hard surfaces, such as on or under rocks, or in rock crevices. Some species live quite high in the intertidal zone and are exposed to the air and light for long … See more Similar to many species of saltwater limpets, several species of chiton are known to exhibit homing behaviours, journeying to feed and then returning to the exact spot they previously inhabited. The method they use to perform such behaviors has been … See more Chitons have a relatively good fossil record, stretching back to the Cambrian, with the genus Preacanthochiton, known from fossils found … See more how are billiard balls madeWebJun 8, 2024 · Classes in Phylum Mollusca. Phylum Mollusca is a very diverse (85,000 species ) group of mostly marine species, with a dramatic variety of form. This phylum … how are bills numbered in congressWebThe Chitons belong to theClass Polyplacophora, whose members can distinguished by eightcalcareous plates which are embedded on a muscular girdle. Severalgills are … how are bills passed in americaWebChiton, any of numerous flattened, bilaterally symmetrical marine mollusks, worldwide in distribution but most abundant in warm regions. The approximately 600 species are … how many lights for a 5 ft treeWebThe word chiton is a Greek word meaning a gown or tunic, usually worn next to the skin, and covered with a cloak on going outdoors. The chiton was worn by both men and … how are bills passedWebJan 26, 2024 · Study with Quizlet and memorize flashcards containing terms like Which of the following is not a member of the class bivalvia?, What type of system has blood moving through blood vessels, The hollow ball of cells produced when a zygote divides rapidly is called a and more. how are bills enforcedWebStudy with Quizlet and memorize flashcards containing terms like how many classes are in Mollusca?, True or False: Mollusca belong to the Lophotrochozoa, The term for 'not extinct' and more. ... which class do chitons belong to? Polyplacophora Sets found in the same folder. Kingdom: Anamalia; Phylum: Porifera. 70 terms ... how are bills made into law