- 1(current)
Q. No.Ichthyosaur was:
1. a marine retile
2. a marine amphibian
3. a fresh water amphibian
4. a flying reptile
1. a marine retile
2. a marine amphibian
3. a fresh water amphibian
4. a flying reptile
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
54%
From NCERT
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Consider the given two statements:
| Assertion: | Unlike amphibians, reptiles were truly successful on land. |
| Reason: | Unlike amphibians, reptiles lay thick-shelled eggs which do not dry up in sun. |
| 1. | (A) is false but (R) is true |
| 2. | (A) is true but (R) is false |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 4. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
78%
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In geological time scale, the correct sequence of periods [beginning with earliest] will be:
| 1. | Silurian → Devonian → Carboniferous → Permian |
| 2. | Permian → Devonian → Carboniferous → Silurian |
| 3. | Silurian → Carboniferous → Devonian → Permian |
| 4. | Permian → Carboniferous → Devonian → Silurian |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
73%
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Most common component of coal-forming ecosystems from the Carboniferous and Permian periods were:
1. Algae and protists
2. Ferns
3. Angisosperms
4. Animals
1. Algae and protists
2. Ferns
3. Angisosperms
4. Animals
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
78%
From NCERT
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About 65 mya, the dinosaurs suddenly disappeared from the earth. The reason for their sudden disappearance may be:
1. Only (a)
2. Only (b)
3. The truth may live in between (a) and (b).
4. Neither (a) nor (b).
| (a) | Climatic changes killed them. |
| (b) | Most of them evolved into birds. |
1. Only (a)
2. Only (b)
3. The truth may live in between (a) and (b).
4. Neither (a) nor (b).
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
85%
From NCERT
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- 1(current)
Q. No.
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