Which one of the following is a matching set of a phylum and its three examples?
(1) Cnidaria − Bonellia, Physalia, Aurelia
(2) Platyhelminthes − Planaria, Schistosoma, Enterobius
(3) Mollusca − Loligo, Teredo, Octopus
(4) Porifera − Spongilla, Euplectella, pennatula
Which one of the following is a matching set of a phylum and its three examples?
(1) Cnidaria − Bonellia, Physalia, Aurelia
(2) Platyhelminthes − Planaria, Schistosoma, Enterobius
(3) Mollusca − Loligo, Teredo, Octopus
(4) Porifera − Spongilla, Euplectella, pennatula
| 1. | Earthworm | 2. | Tunicate |
| 3. | Moth | 4. | Starfish |
2. Reptilia
3. Aves
4. Osteichthyes
1. Macropus
2. Chelone
3. Camelus
4. Psittacula
Which of the following characteristic features always hold true for the corresponding group of animals?
| (a) | Viviparous | (1) | Mammalia |
| (b) | Possess a mouth with an upper and a lower jaw | (2) | Chordata |
| (c) | 3- chambered heart with one incompletely divided ventricle | (3) | Reptilia |
| (d) | Cartilaginous - Endoskeleton | (4) | Chondrichthyes |
1. a
2. b
3. c
4. d
1. River dolphin
2. Blue whale
3. Sea-horse
4. Gangetic shark
Which of the following characteristics is mainly responsible for the diversification of insects on land:
| 1. | Segmentation | 2. | Bilateral symmetry |
| 3. | Exoskeleton | 4. | Eyes |
1. Earthworm, Pinworm, Tapeworm
2. Prawn, Scorpion, Locusta
3. Sponge, Sea anemone, Starfish
4. Malarial parasite, Amoeba, Mosquito
Match the name of the animal (Column-I), with one characteristic (Column-II), and the phylum/class (Column-III) to which it belongs:
| Column-I | Column-II | Column-III | |
| 1. | Ichthyophis | terrestrial | Reptilia |
| 2. | Limulus | body covered by chitinous exoskeleton | Pisces |
| 3. | Adamsia | radially symmetrical | Porifera |
| 4. | Petromyzon | ectoparasite | Cyclostomata |
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