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) |
Column-I | Column-II | ||
a. | Annelids | (i) | Triploblastic acoelomate |
b. | Platyhelminths | (ii) | Ciliated comb plates |
c. | Aschelminths | (iii) | Metamerism |
d. | Ctenophores | (iv) | Pseudocoelomates |
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. |
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. |
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. |
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 |
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) |
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) |
1. | One | 2. | Two |
3. | Three | 4. | Four |
(a) | All vertebrates are chordates but all chordates are not vertebrates |
(b) | All vertebrates have paired appendages which may be fins or limbs |
(c) | All vertebrates bear jaw |
(d) | All aquatic animals which bear fins are placed in superclass Pisces |
a | b | c | d | |
1. | T | F | F | F |
2. | T | T | F | F |
3. | T | F | F | T |
4. | T | F | T | T |
Assertion (A): | Platyhelminthes are commonly known as flatworms |
Reason (R): | They have a dorso-ventrally flattened body |
1. | Both (A) and (R) are true and (R) is the correct explanation for (A) |
2. | Both (A) and (R) are true but (R) is not the correct explanation for (A) |
3. | (A) is true, (R) is false |
4. | (R) is true (A)is false |