Organism (a) differs from (b) in having:
1.
Presence of one auricle and one ventricle
2.
External fertilisation
3.
Separate sexes
4.
Lack of capacity to regulate body temperature
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes | Class Osteichthyes |
71%
From NCERT
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Identify phyla A and B from the following set of features in the box given below:
Select the correct option:
| Features | Phylum A | Phylum B | |
| a. | Presence of 3 germ layers | Absent | Present |
| b. | Hermaphroditism | Present | Present |
| c. | Regeneration | Present | Present in some members |
| d. | Digestive System | Absent | Incomplete |
Select the correct option:
| A | B | |
| 1. | Platyhelminthes | Arthropoda |
| 2. | Porifera | Platyhelminthes |
| 3. | Cnidaria | Aschelminthes |
| 4. | Ctenophora | Annelida |
Subtopic: Phylum Porifera | Phylum Platyhelminthes |
70%
From NCERT
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Choose the correct option to complete the analogy:
Sawfish: Gill slits are present: : _____: Gill slits are absent.
1. Dogfish
2. Devilfish
3. Stingray
4. Angelfish
Sawfish: Gill slits are present: : _____: Gill slits are absent.
1. Dogfish
2. Devilfish
3. Stingray
4. Angelfish
Subtopic: Phylum Chordata |
57%
From NCERT
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Choose the correct match:
1. Balanoglossus – Stomochord
2. Cucumaria – Water canal system
3. Chaetopleura – Chitinous exoskeleton
4. Octopus – Dorsal hollow nerve cord
1. Balanoglossus – Stomochord
2. Cucumaria – Water canal system
3. Chaetopleura – Chitinous exoskeleton
4. Octopus – Dorsal hollow nerve cord
Subtopic: Phylum Hemichordata |
79%
From NCERT
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Match items in column-I with those in column-II and choose the correct option.
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)
| 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%
From NCERT
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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 |
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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 |
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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 |
63%
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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 |
51%
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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 |
54%
NEET - 2013
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