Which one of the following is not a characteristic of phylum-Annelida?
1. Closed circulatory system
2. Segmentation
3. Pseudocoelom
4. Ventral nerve cord
Which one of the following phyla is correctly matched with its two general characteristics?
| 1. | Arthropoda | − Body divided into head, thorax and abdomen and respiration by mouth |
| 2. | Chordata | − Notochord at early stage only and separate anal and urinary openings to the outside |
| 3. | Echinodermata | − Pentamerous radial symmetry and mostly internal fertilization |
| 4. | Mollusca | − Normally oviparous and development 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 |
|
(1) |
Liver fluke, sea anemone, sea cucumber |
– |
Bilateral |
|
(2) |
Earthworm, prawn, scorpion |
– |
Jointed appendages |
|
(3) |
Scorpion, spider, cockroach |
– |
Ventral solid central nervous system |
|
(4) |
Cockroach, locust, Taenia |
– |
Metameric segmentation |
Which one of the following pairs is mismatched?
|
(1) |
Pila globosa |
– |
pearl |
|
(2) |
Apis indica |
– |
honey |
|
(3) |
Kenia lacca |
– |
lac |
|
(4) |
Bombyx mori |
– |
silk |
What is common between parrot, platypus and kangaroo?
1. Homeothermy
2. Toothless jaws
3. Functional post-anal tail
4. Oviparity
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 |
Which of the following pairs are correctly matched?
|
Animals |
Morphological features |
||
|
A. |
Crocodile |
– |
4-chambered heart |
|
B. |
Sea urchin |
– |
Parapodia |
|
C. |
Obelia |
– |
Metagenesis |
|
D. |
Lemur |
– |
Thecodont |
1. A, C and D
2. B, C and D
3. Only A and D
4. Only A and B
What is true about Nereis, Scorpion, Cockroach and Silver fish?
| 1. | They all have jointed paired appendages |
| 2. | They all possess dorsal heart |
| 3. | None of them is aquatic |
| 4. | They all belong to the same phylum |
Which one of the following is not a living fossil?
(1) King crab
(2) Sphenodon
(3) Archaeopteryx
(4) Peripatus
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, Sepia, Octopus |
| 4. | Porifera − Spongilla, Euplectella, pennatula |
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