Academic session 2026-27, Chapter 4 in the current curriculum.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter Animal Kingdom. This page offers a step-by-step solution to the specific question from Exercise 1, Question 9: “All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
The characteristic features of the phylum Chordata include the presence of a notochord and paired pharyngeal gill slits. In sub-phylum Vertebrata, the notochord present in embryos gets replaced by a cartilaginous or bony vertebral column in adults. But in cephelochordates, notochord persists throughout life as such and in urochordates, notochord is present only in larval stages and absent in adults. Thus, it can be said that all vertebrates are chordates but all chordates are not vertebrates.
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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 9: “All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.....
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