Biology
NULL
Medium
Question
Notochord is present throughout life in ___________?
A
Urochordates
B
Cephalochordates
✓ Official correct answer
C
Chordates
D
Vertebrates
Community credibility
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A
Urochordates
No member explanations yet for this option.
B
Cephalochordates
No member explanations yet for this option.
C
Chordates
No member explanations yet for this option.
D
Vertebrates
No member explanations yet for this option.
Explanation
Cephalochordates, such as Amphioxus, retain a notochord throughout their entire life, unlike vertebrates, in which it is largely replaced by the vertebral column during development.