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 |
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 |
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. |
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. |
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 |
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. | One | 2. | Two |
3. | Three | 4. | Four |