WebChap 16: Quizzes. Term. 1 / 31. Some descendants of Precambrian acoelomate organisms evolved a more elegant arrangement for a body cavity: a fluid-filled space within the mesoderm, called the coelom. A true coelom means that the space was lined with mesoderm and that mesodermal membranes, the mesenteries, suspended the organs. … WebBiology Exam 4. A. the mass extinction of dinosaurs. B. the origination of all major phyla of animals. C. the development of the first true cell. D. the origination of life. E. the creation of Earth. B. the origination of all major phyla of animals.
CHAPTER 31 Flashcards Quizlet
WebStudy with Quizlet and memorize flashcards containing terms like The protostome developmental sequence arose just once in evolutionary history, resulting in two main … 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 have a relatively good fossil record, stretching back to the Cambrian, with the genus Preacanthochiton, known from fossils found in Late Cambrian deposits in Missouri, being classified as the earliest known polyplacophoran. However, the exact … 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 … 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 … See more Chitons are eaten in several parts of the world. This includes islands in the Caribbean, such as Trinidad, Tobago, The Bahamas, … 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 … See more chin chin bar brunch
Phylum Mollusca manoa.hawaii.edu/ExploringOurFluidEarth
WebA) functions as a circulatory system that distributes nutrients to body cells. B) functions in locomotion, feeding, and gas exchange. C) is bilateral in organization, even though the … Webchiton, any of numerous flattened, bilaterally symmetrical marine mollusks, worldwide in distribution but most abundant in warm regions. The … WebMay 14, 2009 · Chitons are soft bodied organisms that secrete a hard, protective shell made up of calcium carbonate with eight dorsal plates. They belong to the Class … chin chin beauty