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Q. No.Match items in column-I with those in column-II and choose the correct option.
Column-I
Column-II
a.
Annelids
(i)
Triploblastic acoelomate
b.
Platyhelminths
(ii)
Ciliated comb plates
c.
Aschelminths
(iii)
Metamerism
d.
Ctenophores
(iv)
Pseudocoelomates
1. a(i), b(ii), c(iv), d(iii)
2. a(iii), b(i), c(iv), d(ii)
3. a(ii), b(iv), c(i), d(iii)
4. a(iv), b(ii), c(iii), d(i)
Subtopic: Phylum Ctenophora | Phylum Aschelminthes | Phylum Annelida |
92%
Level 1: 80%+
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How many of the animals given in the box exhibit bilateral symmetry, have true coelom and have a segmented body as well?
1. 2
2. 3
3. 4
4. 5
| Euspongia, Hirudinaria, Meandrina, Chaetopleura, Carcharadon, Ctenplona, Fasciola, Bombyx, Ancylostoma |
2. 3
3. 4
4. 5
Subtopic: Basis of Classification |
Level 3: 35%-60%
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Members of Cyclostomata and Chondrichthyes:
| 1. | belong to same Division |
| 2. | have a bony endoskeleton |
| 3. | have a ventral heart |
| 4. | have cartilaginous jaws |
Subtopic: Phylum Chordata | Super Class Pisces & its General Characteristics |
Level 3: 35%-60%
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Identify the group where all given animals belong to the same phylum:
| 1. | Apple snail, Devil fish, Tusk shell, Chiton |
| 2. | Cattle fish, Angel fish, Dog fish, Saw fish |
| 3. | Sea-hare, Sea-cucumber, Sea-urchin, Sea-lily |
| 4. | Squid, Silkworm, Hook worm, King crab |
Subtopic: Phylum Mollusca |
64%
Level 2: 60%+
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Consider the following characters:
| I. | Body is covered by scales in all tetrapods. |
| II. | Jaw is present in all vertebrates. |
| III. | All terrestrial vertebrates have at-least a three chambered muscular heart. |
| 1. | All are incorrect |
| 2. | All are correct |
| 3. | Only III is correct |
| 4. | Only II is correct |
Subtopic: Phylum Chordata | Study of Reptilia |
52%
Level 3: 35%-60%
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Sharks and dogfishes differ from skates and rays by:
| 1. | Gill slits are ventrally placed |
| 2. | Head and trunk are widened considerably |
| 3. | Distinct demarcation between body and tail |
| 4. | Their pectorals fins are distinctly marked off from cylindrical bodies |
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
55%
Level 3: 35%-60%
NEET - 2013
Hints
| Assertion (A): | Radial symmetry in animals is advantageous in detecting food and danger. |
| Reason (R): | It allows the animal to be able to respond to stimulus from any direction. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Basis of Classification |
66%
Level 2: 60%+
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Identify the option where all given animals belong to the same phylum:
| 1. | Squid, Devil fish, Flying fish, Dogfish |
| 2. | Apple snail, Pearl oyster, Brittle star, Brain coral |
| 3. | Sea urchin, Sea lily, Sea cucumber, Sea horse |
| 4. | Cuttlefish, Sea-hare, Tusk shell, Chiton |
Subtopic: Phylum Mollusca |
74%
Level 2: 60%+
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Members of Chondrichthyes are characterised by all the following except:
| 1. | Presence of a swim bladder |
| 2. | Ventrally located mouth |
| 3. | Lack of operculum |
| 4. | Placoid scales |
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
81%
Level 1: 80%+
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Consider the two statements:
| Assertion (A): | Hemichordata was earlier considered as a sub-phylum under non-chordata but now it is placed as a separate Class under Chordata. |
| Reason (R): | Hemichordates have a rudimentary structure in the collar region called stomochord, a structure homologous to notochord. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are False. |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: Phylum Hemichordata |
62%
Level 2: 60%+
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