WebThe phylum Mollusca is one of the most diverse in the animal kingdom, second only to the arthropods in number of species, but with much greater diversity of body plan. There are … Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks . 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 … See more The words mollusc and mollusk are both derived from the French mollusque, which originated from the Latin molluscus, from mollis, soft. Molluscus was itself an adaptation of Aristotle's τὰ μαλάκια ta malákia (the soft … See more Because of the great range of anatomical diversity among molluscs, many textbooks start the subject of molluscan anatomy by describing what is … See more Feeding Most molluscs are herbivorous, grazing on algae or filter feeders. For those grazing, two feeding strategies are predominant. Some feed on microscopic, filamentous algae, often using their radula as a 'rake' to comb up … See more Fossil record Good evidence exists for the appearance of gastropods (e.g., Aldanella), cephalopods (e.g., Plectronoceras, Nectocaris) and bivalves See more The most universal features of the body structure of molluscs are a mantle with a significant cavity used for breathing and excretion, … See more Estimates of accepted described living species of molluscs vary from 50,000 to a maximum of 120,000 species. The total number of described species is difficult to estimate because … See more Opinions vary about the number of classes of molluscs; for example, the table below shows seven living classes, and two extinct ones. Although they are unlikely to form a clade, some older works combine the Caudofoveata and Solenogasters into one class, the See more
Quiz Mollusca - CliffsNotes
WebA mollusk is a kind of animal with a soft body. Most mollusks have a hard shell that protects the body. There are more than 100,000 species, or types, of mollusk. Octopuses , oysters, snails , and squid are just a few examples. WebChapter Outline Introduction to Freshwater Members of the Phylum Snail Diets 399 Mollusca 383 Effects of Snail Feeding 401 Diversity 383 Dispersal 402 General Systematics and Phylogenetic Relationships Population Regulation 402 of Mollusca 384 Food Quality 402 Mollusc Anatomy and Physiology 384 Parasitism 402 Shell Morphology 384 … eiffel tower anyaivanova/shutterstock
Morphometry of the shell in Scaphopoda (Mollusca): a tool for the ...
Websystem and chemical messenger, energy and enzymes, inheritance patterns, introduction to zoology, molecular genetics: ultimate cellular control, nerves and nervous system ... test 13 to solve MCQ questions: molluscan characteristics, phylum mollusca: class aplacophora, phylum mollusca: class bivalvia, phylum mollusca: class ... http://manandmollusc.net/advanced_introduction/mollusca_101_intro.html WebINTRODUCTION Where Land Mollusca Live. The majorit snail arsy oe f N. Z, land restricted to th isolatee remnantd osf nativ bushe . Th buse ihs called a macrohabita but thet place whers the e individua animall s live are referred to as microhabitats Thes can b madeee int.o a very follow me fnaf 1 hour