Q. No.Fishes with stout and strong fins that could move on land and go back to water existed about:
1.
500 mya
2.
350 mya
3.
320 mya
4.
300 mya
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| 1. | Seymouria | 2. | Peripatus |
| 3. | Cartilaginous fishes | 4. | Coelocanths [lobe-finned fishes] |
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| 1. | Pelycosaurs | 2. | Synapsids |
| 3. | Tuataras | 4. | Thecodonts |
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| 1. | Carboniferous | 2. | Jurassic |
| 3. | Cretaceous | 4. | Tertiary |
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| 1. | Pareiasaurus | 2. | Pelycosaur |
| 3. | Ichthyosaurus | 4. | Archosaurus |
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| I: | Climatic changes killed them |
| II: | Most of them evolved into birds |
| 1. | I only | 2. | II only |
| 3. | Both I and II | 4. | Neither I nor II |
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| 1. | 15 mya | 2. | 20 mya |
| 3. | 25 mya | 4. | 30 mya |
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1. Western Africa
2. Eastern African grasslands
3. South America
4. South East Asia
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