Which of the following is/are the features that all the chordates posses?
a. Vertebrates have bilaterally symmetrical body.
b. They have a true vertebral column.
c. They have dorsal nerve chord.
d. They have chitinious exoskeleton.
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Only a, b and d
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Only a, b and c
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Only b, c and d
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Only a, c and d
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All of these
B
Correct answer
Explanation
This is the correct answer, as all are correct statements about chordates. These animals have a true vertebral column and internal skeleton, allowing a completely different distribution of muscle attachment points to be used for movement. Vertebrates are bilaterally symmetrical, triploblastic, coelomic and segmented with complex differentiation of body tissues and organs.