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Hint: Animals that belong to the same chordates are fundamentally characterized by the presence of a notochord, a dorsal hollow nerve cord, and paired pharyngeal gill slits. The notochord is replaced by a cartilaginous or bony rachis within the adult in Craniata.
Complete answer: All vertebrates are chordates but in all chordates don’t seem to be vertebrates. Besides the essential chordate characters, vertebrates have a ventral muscular heart with two, three, or four chambers, kidneys for excretion and osmoregulation, and pairs are a tail that reaches out behind or more the butt, an empty nerve string above (or dorsal to) the gut, gill cuts opening from the pharynx to the outside, and an end style (a body fluid discharging structure) or it’s subordinate between the gill cuts (A trademark highlight might be available just in the creating incipient organism and may vanish as the undeveloped organism develops into the grown-up structure). A fairly comparable body plan can be found in the firmly related phylum Hemichordates. Chordates and animals whose bodies are featured with the presence of notochord. The members of this group are characterized by pharyngeal gill slits and a hollow nerve cord. In some animals come the presence of chordate are often found within the entire body, from head to tail; whereas in some animals it’s present only part of their larval tail. All chordates are coelomates, have pharyngeal gill clefts at one stage of their life cycle.
Thus, the solution is option A: Diaphragm
Note: Chondrichthyes is the division of Vertebrata. They’re ectoparasites on other fishes. They’re marine animals that have streamlined bodies. The notochord in these fishes is persistent throughout their life. Their mouth is found ventrally.
Complete answer: All vertebrates are chordates but in all chordates don’t seem to be vertebrates. Besides the essential chordate characters, vertebrates have a ventral muscular heart with two, three, or four chambers, kidneys for excretion and osmoregulation, and pairs are a tail that reaches out behind or more the butt, an empty nerve string above (or dorsal to) the gut, gill cuts opening from the pharynx to the outside, and an end style (a body fluid discharging structure) or it’s subordinate between the gill cuts (A trademark highlight might be available just in the creating incipient organism and may vanish as the undeveloped organism develops into the grown-up structure). A fairly comparable body plan can be found in the firmly related phylum Hemichordates. Chordates and animals whose bodies are featured with the presence of notochord. The members of this group are characterized by pharyngeal gill slits and a hollow nerve cord. In some animals come the presence of chordate are often found within the entire body, from head to tail; whereas in some animals it’s present only part of their larval tail. All chordates are coelomates, have pharyngeal gill clefts at one stage of their life cycle.
Thus, the solution is option A: Diaphragm
Note: Chondrichthyes is the division of Vertebrata. They’re ectoparasites on other fishes. They’re marine animals that have streamlined bodies. The notochord in these fishes is persistent throughout their life. Their mouth is found ventrally.
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