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Q. No.Assertion (A): Adaptive ability is inherited.
Reason (R): Individuals having heritable and useful variations reproduce better and leave more progeny.
In the light of above statements, select the correct answer from the following options.
1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
3. (A) is true but (R) is false
4. (A) is false but (R) is true
Subtopic: Concept of Organic Evolution: Evidence |
From NCERT
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How many statements given below are incorrect?
(a) Homo erectus fossil was discovered in Java in 1981.
(b) The Neanderthal man lived in near east and central Africa between 75,000–10,000 years ago.
(c) Australopithecines were probably taller than 4 feet but did not walk upright.
(d) Few fossils of man-like bones have been discovered in Ethiopia and Tanzania.
1. Three
2. Two
3. One
4. Four
(a) Homo erectus fossil was discovered in Java in 1981.
(b) The Neanderthal man lived in near east and central Africa between 75,000–10,000 years ago.
(c) Australopithecines were probably taller than 4 feet but did not walk upright.
(d) Few fossils of man-like bones have been discovered in Ethiopia and Tanzania.
1. Three
2. Two
3. One
4. Four
Subtopic: Introduction to Human Evolution | Evolution of Homo Sapiens |
From NCERT
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Read the following statements and select the option which includes only correct statements.
(A) Thecodonts are extant ancestors of crocodiles and birds.
(B) Mammals have evolved from sauropsids.
(C) Snakes are closer to lizards than tuataras.
(D) Birds are closer to dinosaurs than crocodiles.
1. (A) and (B)
2. (C) and (D)
3. (A) and (C)
4. (A), (C) and (D)
(A) Thecodonts are extant ancestors of crocodiles and birds.
(B) Mammals have evolved from sauropsids.
(C) Snakes are closer to lizards than tuataras.
(D) Birds are closer to dinosaurs than crocodiles.
1. (A) and (B)
2. (C) and (D)
3. (A) and (C)
4. (A), (C) and (D)
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
From NCERT
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Match column I with column II with respect to human evolution and select the correct option:
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(i), c(iv), d(iii)
3. a(iii), b(i), c(iv), d(ii)
4. a(iv), b(iii), c(ii), d(i)
| Column-I | Column-II | ||
| a. | Australopithecines | (i) | Probably ate meat |
| b. | Homo erectus | (ii) | Walked like gorillas |
| c. | Neanderthal man | (iii) | Hunted with stone weapons but essentially ate fruits |
| d. | Ramapithecus | (iv) | (iv) Lived in near east and central Asia |
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(i), c(iv), d(iii)
3. a(iii), b(i), c(iv), d(ii)
4. a(iv), b(iii), c(ii), d(i)
Subtopic: Introduction to Human Evolution | Classification of Primates | Evolution of Homo Sapiens |
80%
From NCERT
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Select the option representing correct examples of analogous organs.
(a) Sweet potato and potato
(b) Vertebrate hearts and brains
(c) Thorn of Bougainvillea and tendril of Cucurbita
(d) Eyes of the Octopus and of mammals
(e) Flippers of penguins and dolphins
1. (a), (d), (e)
2. (a), (b), (c)
3. (b), (c), (d)
4. (c), (d), (e)
(a) Sweet potato and potato
(b) Vertebrate hearts and brains
(c) Thorn of Bougainvillea and tendril of Cucurbita
(d) Eyes of the Octopus and of mammals
(e) Flippers of penguins and dolphins
1. (a), (d), (e)
2. (a), (b), (c)
3. (b), (c), (d)
4. (c), (d), (e)
Subtopic: Concept of Organic Evolution: Evidence |
89%
From NCERT
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How many statements given below are correct?
(a) Seed ferns are common ancestors for Gnetales and cycads.
(b) Zosterophyllum are avascular land plants that evolved in the Silurian period.
(c) Lycopods are the oldest extant vascular land plants.
(d) Sphenopsids evolved from the group of plants to which Psilophyton belongs.
1. Two
2. Three
3. Four
4. One
(a) Seed ferns are common ancestors for Gnetales and cycads.
(b) Zosterophyllum are avascular land plants that evolved in the Silurian period.
(c) Lycopods are the oldest extant vascular land plants.
(d) Sphenopsids evolved from the group of plants to which Psilophyton belongs.
1. Two
2. Three
3. Four
4. One
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
From NCERT
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Read the following statements and choose the correct option.
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
| Statement A: | Similarities in proteins and genes among diverse organisms indicates common ancestry. |
| Statement B: | Humans and chimpanzees also show biochemical similarities. |
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
Subtopic: Introduction to Human Evolution | Evolution of Homo Sapiens | Biochemical Evidences |
89%
From NCERT
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Match column-I with column-II and choose the correct option:
1. a(iii), b(i), c(iv), d(ii)
2. a(i), b(ii), c(iii), d(iv)
3. a(i), b(iii), c(ii), d(iv)
4. a(ii), b(iv), c(iii), d(i)
| Column-I | Column II | ||
| a. | Lobe-finned fishes | (i) | Amniotes and lay thick-shelled eggs |
| b. | Tyrannosaurus rex | (ii) | Evolved into the first amphibians |
| c. | Dinosaurs | (iii) | Disappeared about 65 mya |
| d. | Reptiles | (iv) | Carnivorous, 20 feet in height |
1. a(iii), b(i), c(iv), d(ii)
2. a(i), b(ii), c(iii), d(iv)
3. a(i), b(iii), c(ii), d(iv)
4. a(ii), b(iv), c(iii), d(i)
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
90%
From NCERT
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How many statements given below are incorrect?
(a) The first mammals were like Macaca.
(b) Due to continental drift, North American animals were overridden by south American fauna.
(c) Pouched mammals of Australia survived because of lack of competition from metatherians.
(d) Seals and sea cows are terrestrial mammals.
1. Zero
2. Four
3. Three
4. Two
(a) The first mammals were like Macaca.
(b) Due to continental drift, North American animals were overridden by south American fauna.
(c) Pouched mammals of Australia survived because of lack of competition from metatherians.
(d) Seals and sea cows are terrestrial mammals.
1. Zero
2. Four
3. Three
4. Two
Subtopic: Concept of Organic Evolution: Evidence |
From NCERT
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| Assertion (A): | In terms of determination, evolution is a directed process |
| Reason (R): | Nature selects those variants which are able to reproduce better and leave more progeny in the changed environmental conditions |
Choose the correct answer from the options given below
| 1. | (A) is true but (R) is false |
| 2. | (A) is false but (R) is true |
| 3. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
| 4. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
Subtopic: Darwin's Theory |
59%
From NCERT
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