The presence of notochord in the larval tail is a characteristic of
(1) Doliolum
(2) Branchiostoma
(3) Balanoglossus
(4) Petromyzon
Match the following:
| (a) | Exocoetus | (i) | Rohu |
| (b) | Pterophyllum | (ii) | Fighting fish |
| (c) | Betta | (iii) | flying fish |
| (d) | Labeo | (iv) | Angel fish |
| 1. | (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv) |
| 2. | (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) |
| 3. | (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) |
| 4. | (a)-(iii), (b)-(iii), (c)-(ii), (d)-(i) |
Which of the following animal has a diploblastic level of organisation?
(1) sponges
(2) Adamsia
(3) Ctenoplana
(4) both (2) and (3)
Development involves an indirect or larval form in which of the following?
(1) Pleurobrachia
(2) Euspongia
(3) both (1) and (2)
(4) none of the above
A sessile, cylindrical and radial symmetrical life form is found in
1. Hydra
2. Obelia
3. Adamsia
4. all of the above
Physalia is a coelenterate which is also known as
(1) sea pen
(2) sea fan
(3) Portuguese man of war
(4) sea anemone
Which of the following is wrong about Coelenterata?
(1) They are aquatic and exclusively marine animals.
(2) Cnidarians exhibit tissue level of organisation and are diploblastic.
(3) Some Cnidarians exhibit two forms namely Polyp and Medusa.
(4) Cnidoblasts are present on tentacles and body.
Match the following
| 1) | Pennatula | (i) | sea fan |
| 2) | Gorgonia | (ii) | brain coral |
| 3) | Meandrina | (iii) | sea anemone |
| 4) | Adamsia | (iv) | sea pen |
1. 1-(i), 2-(ii), 3-(iii), 4-(iv)
2. 1-(iv), 2-(i), 3-(ii), 4-(iii)
3. 1-(iv), 2-(ii), 3-(iii), 4-(ii)
4. 1-(i), 2-(iv), 3-(iii), 4-(ii)
Meandrina which is also known as Brain Coral is a
(1) Poriferan
(2) Coelenterate
(3) Echinoderm
(4) Mollusc
Which of the following cnidarians are radially symmetrical and sessile?
(1) Hydra
(2) Aurelia
(3) Adamsia
(4) Both (1) and (3)
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