Chordata Protochordata - Questions & Answers | Exam2Win

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11. A current of water is produced in Branchiostoma by

A. Cilia

B. Cirri

C. Wheel organ

D. Rostrum

Explanation:

12. In protochordates, the epidermis is

A. Absent

B. Multilayered

C. A few layered

D. Single layered

Explanation:

13. The most important character of chordate is

A. Dorsal hollow nervous system

B. Vertebral column

C. Kidneys

D. None of the above

Explanation:

14. Cephalochordate Branchiostoma possesses

A. Laterally compressed spindle-shaped body

B. Caudal fin

C. Dorsal and ventral fins

D. All the above

Explanation:

15. The anterior part of Amphioxus is

A. Oral hood

B. Rostrum

C. Mouth

D. Both A and B

Explanation:

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