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Q. No.Match each item in Column I with one In Column II and select the correct match from the codes given:
Column I
Column II
A
Homo habilis
P
More ape like
B
Homo erectus
Q
More man like
C
Dryopithecus
R
Probably did not eat meat.
D
Ramapitehcus
S
Probably ate meat.
Codes:
A
B
C
D
1.
R
S
P
Q
2.
S
R
P
Q
3.
S
R
Q
P
4.
R
S
Q
P
Subtopic: Evolution Prior to Ape Man |
85%
From NCERT
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Consider the given two statements:
| Assertion(A): | Pouched mammals survived in the continent of Australia. |
| Reason(R): | Due to continental drift, pouched mammals of Australia did not face competition from any other mammals. |
| 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: Difference Between Drift & Selection |
87%
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 |
86%
From NCERT
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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 |
56%
From NCERT
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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 |
79%
From NCERT
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How many of the given statements are correct regarding the timeline of evolution of different life forms on Earth?
1. 3
2. 4
3. 5
4. 6
| I: | By the time of 500 mya, invertebrates were formed and active. |
| II: | Jawless fish probably evolved around 350 mya. |
| III: | Sea weeds and few plants existed probably around 320 mya. |
| IV: | The first organisms that invaded land were plants. |
| V: | Lobefins evolved into the first amphibians. |
| VI: | The amphibians evolved into reptiles. |
1. 3
2. 4
3. 5
4. 6
Subtopic: Evolution Prior to Ape Man: 1 |
77%
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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Natural selection can lead to:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | stabilisation in which more individuals acquire mean character value |
| II: | directional change in which more individuals acquire value other than the mean character value |
| III: | disruption in which more individuals acquire peripheral character value at both ends of the distribution curve |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Natural Selection |
88%
From NCERT
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The loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population is called as:
1. Edge effect
2. Genetic bottleneck
3. Founder effect
4. Saltation
1. Edge effect
2. Genetic bottleneck
3. Founder effect
4. Saltation
Subtopic: Hardy Weinberg Law: 2 |
82%
From NCERT
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