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Q. No.Tendrils in different plants such as Pisum and Passiflora are example of
1. Analogous organs
2. Divergent evolution
3. Homologous organs
4. Both (1) and (2)
Subtopic: Concept of Organic Evolution: Evidence |
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Which of the following structures are vestigial in Python but not in humans?
1. Nictitating membrane
2. Ear pinna
3. Hind limbs
4. All of these
1. Nictitating membrane
2. Ear pinna
3. Hind limbs
4. All of these
Subtopic: Concept of Organic Evolution: Evidence |
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Which of the following is not a connecting link?
1. Neophilina
2. Peripatus
3. Latimeria
4. Limulus
1. Neophilina
2. Peripatus
3. Latimeria
4. Limulus
Subtopic: Concept of Organic Evolution: Evidence |
54%
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Subtopic: Sources of Variation |
70%
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Ontogeny is defined as
1. Development of embryos
2. Ancestral history of an organism
3. Occurence of ancestral traits in an embryo
4. Presence of rudimentary organs in an organism
1. Development of embryos
2. Ancestral history of an organism
3. Occurence of ancestral traits in an embryo
4. Presence of rudimentary organs in an organism
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
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Complete the analogy
Desert of America : Cacti :: Deserts of Africa : _____________
1. Marsupials
2. Double coconut
3. Finches
4. Euphorbias
Desert of America : Cacti :: Deserts of Africa : _____________
1. Marsupials
2. Double coconut
3. Finches
4. Euphorbias
Subtopic: Concept of Organic Evolution: Evidence |
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Which of the following is not an example of restricted distribution?
1. Egg laying mammals
2. Pouched mammals
3. Double coconut
4. Archaeopteryx
1. Egg laying mammals
2. Pouched mammals
3. Double coconut
4. Archaeopteryx
Subtopic: Concept of Organic Evolution: Evidence |
56%
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Placental wolf and Tasmanian wolf marsupial exhibit
1. Adaptive radiation
2. Divergent evolution
3. Convergent evolution
4. Homology
1. Adaptive radiation
2. Divergent evolution
3. Convergent evolution
4. Homology
Subtopic: Concept of Organic Evolution: Evidence |
66%
From NCERT
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Variety of beaks of finches that Darwin found in Galapagos Islands, is an example of
1. Adaptive radiation
2. Convergent evolution
3. Adaptive convergence
4. Analogous organs
1. Adaptive radiation
2. Convergent evolution
3. Adaptive convergence
4. Analogous organs
Subtopic: Darwin's Theory |
84%
From NCERT
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Fitness, according to Darwin refers ultimately and only to
1. Dominance over others
2. Ability to defend
3. Strategy for obtaining food
4. Number of offsprings
1. Dominance over others
2. Ability to defend
3. Strategy for obtaining food
4. Number of offsprings
Subtopic: Additional Theories of Darwin |
78%
From NCERT
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