The presence of notochord in the larval tail is a characteristic of

(1) Doliolum

(2) Branchiostoma

(3) Balanoglossus

(4) Petromyzon

Subtopic:  Phylum Chordata |
 70%
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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)

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 84%
From NCERT
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Which of the following animal has a diploblastic level of organisation?

(1) sponges

(2) Adamsia

(3) Ctenoplana

(4) both (2) and (3)

Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes |
 88%
From NCERT
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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

Subtopic:  Phylum Porifera | Phylum Ctenophora & Platyhelminthes |
 76%
From NCERT
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A sessile, cylindrical and radial symmetrical life form is found in

1. Hydra

2. Obelia

3. Adamsia

4. all of the above

Subtopic:  Phylum Coelenterata |
 77%
From NCERT
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Physalia is a coelenterate which is also known as

(1) sea pen

(2) sea fan

(3) Portuguese man of war

(4) sea anemone

Subtopic:  Phylum Coelenterata |
 90%
From NCERT
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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.

Subtopic:  Phylum Coelenterata |
 70%
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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)

Subtopic:  Phylum Coelenterata |
 92%
From NCERT
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Meandrina which is also known as Brain Coral is a

(1) Poriferan

(2) Coelenterate

(3) Echinoderm

(4) Mollusc

Subtopic:  Phylum Coelenterata |
 93%
From NCERT
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Which of the following cnidarians are radially symmetrical and sessile?

(1) Hydra

(2) Aurelia

(3) Adamsia

(4) Both (1) and (3)

Subtopic:  Phylum Coelenterata |
 84%
From NCERT
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