In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remaining three are correct? 

Genus Name Two Characters Phylum
1. Pila (i)
(ii)
Body segmented
Mouth with Radula
Mollusca
2. Asterias (i)
(ii)
Spiny skinned
Water Vascular System
Echinodermata
3. Sycon (i)
(ii)
Pore bearing
Canal system
Porifera
4. Periplaneta (i)
(ii)
Jointed appendages
Chitinous exoskeleton
Arthropoda
Subtopic:  Phylum Mollusca |
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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

Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Arthropoda | Phylum Mollusca |
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Which one of the following phyla is correctly matched with its two general characteristics?
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
Subtopic:  Phylum Arthropoda | Phylum Mollusca |
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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
Subtopic:  Phylum Arthropoda | Phylum Mollusca |
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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

Subtopic:  Phylum Mollusca |
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