1
Question
Which of the following adult protochordate has a notochord?
Which of the following adult protochordate has a notochord?
Open in App
Solution
The correct option is A Amphioxus
Amphioxus is cephalochordate and all cephalochordates have a notochord throughout their life.
Petromyzon is a cyclostome, in which the notochord is present in embryonic stages and gets replaced by a vertebral column. It is not a protochordate.
Ascidia and Salpa are urochordates which have notochord in the tail of the larva. Adults lose their tails and also the notochord.
Both urochordate and cephalochordates belong to the protochordate.
Amphioxus is cephalochordate and all cephalochordates have a notochord throughout their life.
Petromyzon is a cyclostome, in which the notochord is present in embryonic stages and gets replaced by a vertebral column. It is not a protochordate.
Ascidia and Salpa are urochordates which have notochord in the tail of the larva. Adults lose their tails and also the notochord.
Both urochordate and cephalochordates belong to the protochordate.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
