Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Members of subphylum vertebrata possess notochord during the embryonic period. The notochord is replaced by a cartilaginous or bony vertebral column in the adult.
Reason R: Thus all chordates are vertebrates not all vertebrates are chordates.
In the light of the above statements choose the correct answer from the option given below.
Match List I with List II:
| List - I | List - II | ||
|---|---|---|---|
| A. | Pleurobrachia | I. | Mollusca |
| B. | Radula | II. | Ctenophora |
| C. | Stomochord | III. | Osteichthyes |
| D. | Air bladder | IV. | Hemichordata |
Choose the correct answer from the options given below :
Consider the following statements :
A. Annelids are true coelomates
B. Poriferans are pseudocoelomates
C. Aschelminthes are acoelomates
D. Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below :
Match List I with List II :
| List - I | List - II | ||
|---|---|---|---|
| A. | Pterophyllum | I. | Hag fish |
| B. | Myxine | II. | Saw fish |
| C. | Pristis | III. | Angel fish |
| D. | Exocoetus | IV. | Flying fish |
Choose the correct answer from the options given below :