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The echinoderms, hemichordates and chordates had which of the following larva as a common ancestral form?
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Important Questions on Animal Kingdom
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Crocodile and penguin are similar to whale and dog fish in which one of the following features?
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Read the given statements and select the correct option.
Statement 1: Urochordates and cephalochordates are often called invertebrate chordates.
Statement 2: They are a connecting link between the invertebrates and the chordates.
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Read the given statements and select the correct option.
Statement 1: Cephalochordata bears notochord throughout their life.
Statement 2: In cephalochordates, notochord extends from head to tail.
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Match column I with II and select the correct option from the given codes.
| I | II | ||
|---|---|---|---|
| (a) | Cyclostomes | (i) | Hemichordata |
| (b) | Aves | (ii) | Urochordata |
| (c) | Tunicates | (iii) | Agnatha |
| (d) | Balanoglossus | (iv) | Pisces |
| (e) | Osteichthyes | (v) | Tetrapod |
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Which one of the following statements is incorrect about the occurrence of notochord?
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In some chordates, the notochord is modified as the vertebral column. Such animals are called vertebrates. Which one of the following statements makes sense?
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A common characteristic of all vertebrates without exception is
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Go through the following flow chart for the division of subphylum Vertebrata. Fill in the gaps A, B, C, and D and select the correct option.
