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Q. No.Select the incorrect statements with respect to Cyclostomes:
(a) They lack scales and paired fins.
(b) They have circular mouth with Jaws.
(c) They bear 6-15 pairs of gills.
(d) They migrate to deep sea for spawning.
Choose the most appropriate answer from the options given below :
1. (a) and (b) only
2. (b) and (c) only
3. (b) and (d) only
4. (a) and (d) only
Subtopic: Super Class Pisces & its General Characteristics |
57%
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Match items in column-I with those in column-II and choose the correct option.
(a) (b) (c) (d)
1. (i) (ii) (iii) (iv)
2. (iv) (iii) (ii) (i)
3. (ii) (iv) (i) (iii)
4. (i) (iii) (ii) (iv)
| Column-I | Column-II | ||
| (a) | Exocoetus | (i) | Tympanum represents the ear |
| (b) | Trygon | (ii) | Marine bony fish |
| (c) | Salamandra | (iii) | Air sacs connected to lungs |
| (d) | Aptenodytes | (iv) | Cartilaginous marine fish |
(a) (b) (c) (d)
1. (i) (ii) (iii) (iv)
2. (iv) (iii) (ii) (i)
3. (ii) (iv) (i) (iii)
4. (i) (iii) (ii) (iv)
Subtopic: Study of Reptilia | Study of Aves & Mammals | Super Class Pisces & its General Characteristics |
88%
From NCERT
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Match items in column-I with those in column-II and choose the correct option.
A B C D
1. (i) (ii) (iii) (iv)
2. (ii) (iii) (iv) (i)
3. (i) (iii) (ii) (iv)
4. (ii) (i) (iv) (iii)
| Column-I | Column-II | ||
| A. | Cyclostomata | (i) | Mouth without jaws |
| B. | Chondrichthyes | (ii) | Exclusively oviparous |
| C. | Aves | (iii) | Gills without operculum |
| D. | Mammalia | (iv) | Unique in possessing hair |
A B C D
1. (i) (ii) (iii) (iv)
2. (ii) (iii) (iv) (i)
3. (i) (iii) (ii) (iv)
4. (ii) (i) (iv) (iii)
Subtopic: Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes | Study of Aves & Mammals |
87%
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 & Platyhelminthes | Phylum Aschelminthes | Phylum Annelida |
91%
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Read the following statements A and B and choose the correct answer.
1. Both statements A and B are correct.
2. Only statement A is incorrect.
3. Both statements A and B are incorrect.
4. Only statement B is incorrect.
| Statement A: | The most unique mammalian characteristic is the presence of milk-producing mammary glands. |
| Statement B: | Mammals have one pair of limbs, adapted for walking, running, climbing, burrowing swimming, or flying. |
2. Only statement A is incorrect.
3. Both statements A and B are incorrect.
4. Only statement B is incorrect.
Subtopic: Study of Aves & Mammals |
57%
From NCERT
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Read the following statements (A) and (B) with respect to bony fishes and choose the correct answer from the following given options.
1. Both statements (A) and (B) are correct.
2. Only statement (A) is incorrect.
3. Both statements (A) and (B) are incorrect.
4. Only statement (B) is incorrect.
| Statement (A): | Osteichthyes includes both marine and freshwater fishes with a bony endoskeleton. |
| Statement (B): | Their body is streamlined and their mouth is ventral in position. |
2. Only statement (A) is incorrect.
3. Both statements (A) and (B) are incorrect.
4. Only statement (B) is incorrect.
Subtopic: Comparative study of Cartilagenous & Bony Fishes |
60%
From NCERT
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Read the following statements carefully with respect to taxon vertebrata.
Choose the option with only incorrect statements.
| a. | Phylum vertebrata is divided into two superclasses - Pisces and Tetrapoda. |
| b. | Superclass Pisces includes cyclostomes, cartilaginous and bony fishes. |
| c. | In bony fishes, air bladder is present which regulates buoyancy. |
| d. | Body of all amphibians is divisible into head neck and trunk. |
| e. | Both fishes and amphibians are poikilothermous animals. |
| 1. | a, b, c, d | 2. | a, b, c, d, e |
| 3. | a, b, d | 4. | c, d, e |
Subtopic: Comparative study of Cartilagenous & Bony Fishes |
69%
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Match column-I with column-II and choose the correct option.
a b c d
1. (i) (ii) (iii) (iv)
2. (iv) (ii) (iii) (i)
3. (ii) (iii) (iv) (i)
4. (ii) (iv) (i) (iii)
| Column I | Column II | ||
| a. | Asterias | (i) | Notochord in larval tail |
| b. | Balanoglossus | (ii) | Spiny body |
| c. | Ascidia | (iii) | Cloaca present |
| d. | Hyla | (iv) | Worm-like marine animal |
a b c d
1. (i) (ii) (iii) (iv)
2. (iv) (ii) (iii) (i)
3. (ii) (iii) (iv) (i)
4. (ii) (iv) (i) (iii)
Subtopic: Phylum Echinodermata | Phylum Hemichordata | Phylum Chordata | Study of Amphibians |
90%
From NCERT
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Match column -I with column-II and choose the correct option:
1. a(i), b(ii), c(iii), d(iv)
2. a(iv), b(iii), c(ii), d(i)
3. a(ii), b(iv), c(i), d(iii)
4. a(iii), b(i), c(ii), d(iv)
| Column-I | Column-II | ||
| a. | Three-chambered heart with one incompletely divided ventricle | (i) | Myxine |
| b. | Jawless vertebrate with a cartilaginous vertebral column | (ii) | Chaetopleura |
| c. | Soft, unsegmented body and has a structure that helps in both respiration and excretion | (iii) | Calotes |
| d. | Ventral mouth, gills without operculum, and skin with placoid scales | (iv) | Scoliodon |
1. a(i), b(ii), c(iii), d(iv)
2. a(iv), b(iii), c(ii), d(i)
3. a(ii), b(iv), c(i), d(iii)
4. a(iii), b(i), c(ii), d(iv)
Subtopic: Phylum Mollusca | Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes | Study of Reptilia |
86%
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How many statements are correct with respect to most of the sponges?
(a) The cells are arranged as loose cell aggregates and exhibit cellular level of organisation
(b) The body cells in sponges exhibit some division of labour
(c) Any plane that passes through the central axis of the body divides sponges into two equal halves
(d) Sponges have a water transport or canal system
Select the correct option
(a) The cells are arranged as loose cell aggregates and exhibit cellular level of organisation
(b) The body cells in sponges exhibit some division of labour
(c) Any plane that passes through the central axis of the body divides sponges into two equal halves
(d) Sponges have a water transport or canal system
Select the correct option
| 1. | One | 2. | Two |
| 3. | Three | 4. | Four |
Subtopic: Phylum Porifera |
63%
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