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Question
In some chordates, the notochord is modified as the vertebral column, such animals are called vertebrates. Which of the following statements make sense?
In some chordates, the notochord is modified as the vertebral column, such animals are called vertebrates. Which of the following statements make sense?
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Solution
The correct option is C All vertebrates are chordates but all chordates are not vertebrates
Vertebrates are originated from chordates i.e it is the subphylum of chordates. They both possess the common features a notochord, a dorsal hollow nerve cord, pharyngeal gill slits and post-anal tail. They further evolved where the notochord changed into the bony backbone known as a vertebral column. Therefore, all chordates are not vertebrates but all vertebrates are chordates. Thus the correct answer is option C.
Vertebrates are originated from chordates i.e it is the subphylum of chordates. They both possess the common features a notochord, a dorsal hollow nerve cord, pharyngeal gill slits and post-anal tail. They further evolved where the notochord changed into the bony backbone known as a vertebral column. Therefore, all chordates are not vertebrates but all vertebrates are chordates. Thus the correct answer is option C.
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