Q. No.Which of the following characteristics is mainly responsible for the diversification of insects on land:
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
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 |
One of the representatives of the phylum Arthropoda is:
1. Silverfish
2. Pufferfish
3. Flying fish
4. Cuttlefish
| Animal | Excretory organs | Excretory product | |
| 1. | Labeo (Rohu) | Nephridial tubes | Ammonia |
| 2. | Salamander | Kidney | Urea |
| 3. | Peacock | Kidney | Urea |
| 4. | Housefly | Renal tubules | Uric acid |
The figure shows four animals (a), (b), (c) and (d). Select the correct answer with respect to a common characteristic of two of these animals:
| (a) |  |
(b) |  |
| (c) |  |
(d) |  |
1. (c) and (d) have a true coelom
2. (a) and (d) respire mainly through body wall
3. (b) and (c) show radial symmetry
4. (a) and (b) have cnidoblasts for self-defence
| 1. | Arthropoda - The body is divided into a head, thorax, abdomen and respiration by mouth |
| 2. | Chordata - Notochord at some stage and separate anal and urinary openings to the outside |
| 3. | Echinodermata – Pentamerous radial symmetry and mostly internal fertilization |
| 4. | Mollusca - Normally oviparous and developed through a trochophore or veliger larva |
Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
|
Animals |
Morphological feature |
|
(a) Liver fluke, sea anemone, sea cucumber |
Bilateral symmetry |
|
(b) Centipede, prawn, sea urchin |
Jointed appendages |
|
(c) Scorpion spider, cockroach |
Ventral solid central nervous system |
|
(d) cockroach locust, Taenia |
Metameric segmentation |
1. a
2. b
3. c
4. d
Which one of the following pairs is mismatched?
| 1. | Pila globosa - pearl oyster | 2. | Apis indica- honey bee |
| 3. | Laccifer lacca- lac insect | 4. | Bombyx mori- silkworm |
What is true about Nereis, Scorpion, Cockroach, and Silverfish?
1. They all have jointed paired appendages
2. They all possess a dorsal heart
3. None of them is aquatic
4. They all belong to the same phylum
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