Subphylum Cephalochordata
Trending Questions
Q.
Amphioxus belongs to:
Cephalochordata
Urochordata
Vertebrata
None
Q. The notochord is present throughout the life in organisms belonging to which of the following group?
- Agnatha
- Cephalochordata
- Urochordata
- Both A and B
Q. The common feature shared by Amphioxus, Salpa and Doliolum is ______.
- presence of a vertebral column
- presence of a notochord throughout their life
- similar habitat
- presence of a solid nerve cord
Q. What is the fate of notochord in an adult organism which belongs to Gnathostomata?
- Notochord extincts
- Notochord becomes vestigial
- Notochord is replaced by the vertebral column
- Notochord continues same as in larval stage
Q. Which of the following is true about sub-phylum Cephalochordata?
- Notochord is present only in larval tail
- Notochord is replaced by a vertebral column in the adult
- Notochord extends from head to tail
- They are also called tunicates