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In the animals of this phylum, embryonic blastocoel becomes the body cavity of adult
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Important Questions on Invertebrate Phyla
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Extraintestinal migration is exhibited by
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Animals of this class in Annelida have definite number of segments.
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The following are the various external apertures in Pheretima
A) Male genital apertures
B) Spermathecal apertures
C) Nephridiopores
D) Female genital aperture
Arrange the apertures in a correct sequence from the anterior end to the posterior end
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Match the following:
| Mollusc | Class | ||
| A) | Neopilina | Tetrabranchiata | |
| B) | Chiton | Scaphopoda | |
| C) | Aplysia | Monoplacophora | |
| D) | Pulsellum | Polyplacophora | |
| Gastropoda |
The correct match is
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The triploblastic animals that exhibit asymmetry in adult stage are
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Study the following and pick up the correct statements:
Aristotle's lantern is found in echinoids
Glochidium is the larva of cephalopods
Scorpions respire with book lungs.
Parapodia are found in oligochaetes
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The animals in which cleavages are radial and indeterminate and possess enterocoelom are generally:
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Study the following table and pick up the correct combinations.
| S.No | Class | Common name of animals | Special feature |
| I) | Echinoidea | Sea urchins | Aristotle's lantern |
| II) | Cephalopoda | Clams | Crystalline style |
| III) | Holothuroidea | Sea cucumbers | Respiratory trees |
| IV) | Gastropoda | Squids | Torsion |
