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Q. No.The given figure shows the adaptive radiation of marsupials of Australia. What is correct regarding adaptive radiation?
I:
It is the process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats).
II:
When more than one adaptive radiation appeared to have occurred in an isolated geographical area (representing different habitats), one can call this divergent evolution.
1.
Only I
2.
Only II
3.
Both I and II
4.
Neither I nor II
Subtopic: Darwin's Theory |
73%
Level 2: 60%+
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Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
81%
Level 1: 80%+
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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 |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
69%
Level 2: 60%+
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The connecting link between the fishes and amphibians is the:
| 1. | Seymouria | 2. | Peripatus |
| 3. | Cartilaginous fishes | 4. | Coelocanths [lobe-finned fishes] |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
88%
Level 1: 80%+
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Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
73%
Level 2: 60%+
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Dinosaurs became extinct during the geological period:
| 1. | Carboniferous | 2. | Jurassic |
| 3. | Cretaceous | 4. | Tertiary |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
51%
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Around 200 mya, some land reptiles went back to the water to evolve into fish-like reptiles, for example:
| 1. | Pareiasaurus | 2. | Pelycosaur |
| 3. | Ichthyosaurus | 4. | Archosaurus |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
94%
Level 1: 80%+
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Though we cannot be certain, what can be the probable reason/s for the sudden disappearance of dinosaurs from the Earth?
| 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 |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
81%
Level 1: 80%+
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The primates, Dryopithecus and Ramapithecus, existed around:
| 1. | 15 mya | 2. | 20 mya |
| 3. | 25 mya | 4. | 30 mya |
Subtopic: Evolution of Homo Sapiens | Evolution Prior to Ape Man |
89%
Level 1: 80%+
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The first human-like being, the hominid, was called:
| 1. | Homo habilis | 2. | Homo erectus |
| 3. | Homo ergaster | 4. | Homo neanderthelensis |
Subtopic: Evolution of Homo Sapiens |
81%
Level 1: 80%+
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