Which one of the following is a matching pair of a body feature and the animal possessing it?
1. Post-anal-tail - Octopus
2. Ventral Central nervous system - Leech
3. Pharyngeal gills slits absent in embryo - Chamaeleon
4. Ventral heart - Scorpion
Annual migration does not occur in the case of:
1. Salmons
2. Siberian crane
3. Salamander
4. Arctic tern
Which one of the following has an open circulatory system?
1. Pheretima
2. Periplaneta
3. Hirudinaria
4. Octopus
| 1. | absence of true coelom but the presence of metamerism |
| 2. | presence of neither true coelom nor metamerism |
| 3. | presence of true coelom but the absence of metamerism |
| 4. | presence of true coelom and metamerism (metamerisation) |
In which one of the following the genus name, its two characters and its class/phylum are correctly matched?
| Genus | Two Characters | Class/phylum |
| (a) Salman dra | (i) A tympanum represents ear (ii) Fertilisation is external |
Amphibia |
| (b) Pteropus | (i) Skin possesses hair (ii) Oviparous |
Mammalia |
| (c) Aurelia | (i) Cnidobles (ii) organ level of Organisation |
Coelenterata |
| (d) Ascaris | (i) Body segmented (ii) Males and Female distinct |
Annelida |
2. (b)
3. (c)
4. (d)
One of the representatives of the phylum Arthropoda is:
1. Silverfish
2. Pufferfish
3. Flying fish
4. Cuttlefish
Which of the following are correctly matched with respect to their taxonomic classification?
| 1. | Centipede, millipede, spider, scorpion-Insecta |
| 2. | House fly, butterfly, tsetse fly, silverfish-Insecta |
| 3. | Spiny anteater, sea urchin, sea cucumber- Echinodermata |
| 4. | Flying fish, cuttlefish, silverfish- Pisces |
Select the Taxon mentioned that represents both marine and freshwater species:
1. Echinoderms
2. Ctenophora
3. Cephalochordata
4. Cnidaria
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 |
1. Earthworm, Pinworm, Tapeworm
2. Prawn, Scorpion, Locusta
3. Sponge, Sea anemone, Starfish
4. Malarial parasite, Amoeba, Mosquito
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