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Q. No.
Set which includes only analogous organs 
1. wings of butterfly, housefly, and bat
2. hindlegs of horse, grasshopper, and bat
3. wings of butterfly and wingspread of bat and birds
4. mandibles of cockroach, mosquito, and honey bee 
Subtopic:   A BRIEF ACCOUNT OF EVOLUTION |
From NCERT
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Consider the given two statements:
Assertion (A): Evolution by natural selection, in a True sense would have started when cellular forms of life with differences in metabolic capability originated on earth.
Reason (R): Natural selection is the differential survival and reproduction of individuals due to differences in phenotype.
 
1. (A) is True but (R) is False
2. Both (A) and (R) are True and (R) is the correct explanation of (A)
3. Both (A) and (R) are True but (R) is not the correct explanation of (A)
4. (A) is False but (R) is True
Subtopic:   A BRIEF ACCOUNT OF EVOLUTION |
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Consider the given two statements:
Assertion (A): Forelimbs in mammals have varying functions but are all homologous.
Reason (R): The forelimbs of vertebrates are homologous.
   
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:   A BRIEF ACCOUNT OF EVOLUTION |
From NCERT
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Consider the given two statements:
Assertion (A): Evolution can occur if there is genetic variation within a population.
Reason (R): The meaning of EVOLUTION is descent with modification from preexisting species.
 
1. Both (A) and (R) are True but the (R) does not correctly explain (A).
2. (A) is True but (R) is False.
3. Both (A) and (R) are True and the (R) correctly explains (A).
4. (A) is False but (R) is True.
Subtopic:   A BRIEF ACCOUNT OF EVOLUTION |
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Which extinct reptiles are considered as ancestors of dinosaurs, crocodiles, and birds?
1. Therapsids
2. Thecodonts
3. Pterosaurs
4. Plesiosaurs
Subtopic:   A BRIEF ACCOUNT OF EVOLUTION |
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