; The pharynx has ~100 pharyngeal slits which are used in feeding (filter food particles out of the water). Q: Remaining Time: 43 minutes, 49 seconds. When diversity is the lessened in the animal kingdom the overall structure begins to break down and the great, and even if there are … The organism now demonstrates significant differences along the length of its body, so that a head end can now be distinguished from a tail end. advantages and disadvantages hence. This shape of management has some advantages and also several disadvantages. Question. A major disadvantage in bilateral symmetry is a consequence of an advantage of bilateral symmetry, cephalization. What are disadvantage of cephalization? 4. First, is the concept of polarity. In particular, with the evolution of cephalization, the anterior end of the animal became most likely to first encounter food, predators, and other important features of the external environment. Cephalization evolved several times within the animal kingdom, suggesting that it offers certain inherent advantages. 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 … Want to see the step-by-step answer? Several things results from this developmental step. If we consider R&D as an organization we can allocate all features … Compare and contrast the amphibian and reptiles breathing mechanism. What are the possible advantages and disadvantages in the evolutionary trend toward cephalization of the nervous system? Check out a sample Q&A here. Advantages and Disadvantages of Centralization Under certain conditions a centralized organizational structure can be advantageous. What are the possible advantages and disadvantages in the evolutionary trend toward cephalization of the nervous system? *Response times vary by subject and question complexity. check_circle Expert Answer. These differences … The biggest disadvantage of bilateral symmetry is the fact that there is so little diversity in the structure, which makes it a big problem as far as evolution and adaptability is concerned. What are disadvantage of cephalization? Lancets (Amphixous)Label the four chordate characteristics on … Median response time is 34 minutes and may be longer for new subjects. Correct answers: 2 question: List the advantage and disadvantage of: a. coral reefs b. cephalization c. coelom d. ecdysis e. multiple host life cycle f. proglottids g. multiple mouths h. incomplete digestive tract i. ventral nerves j. parthenogenesis k. statoblasts l. ontogenetic torsion m. hydrostatic skeleton See Answer. Step-by-step solution: Chapter: CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12 CH13 CH14 CH15 CH16 CH17 CH18 CH19 CH20 CH21 CH22 CH23 CH24 CH25 CH26 CH27 CH28 CH29 … In a centralized organization structure , the centralized authority may have a better perspective on the big picture of the organization and how the subunits of the organization fit … Maintain all four key characteristics throughout all life stages. Cephalization in the development of a functional “head” end of an organism. Ex. Cephalization is a characteristic feature of the Bilateria, a large group containing the majority of animal phyla. ; Primitive or simple -> similar to chordate ancestors that gave rise to vertebrates. Cephalization definition is - a tendency in the evolution of organisms to concentrate the sensory and neural organs in an anterior head. Centralization evaluation As mentioned if more key decisions are made by top managers of an organization, structure is more centralized. 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