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
Subtopic: Â 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: Â 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: Â Concept of Organic Evolution: Evidence |
 55%
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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: Â 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: Â 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: Â Additional Theories of Darwin |
 78%
From NCERT
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Which one is correctly matched?
| 1. | Hugo de Vries | : | Natural selection |
| 2. | Darwin | : | Theory of Pangenesis |
| 3. | Pasteur | : | Theory of continuity of germplasm |
| 4. | Mendel | : | Inheritance of acquired characters |
Subtopic: Â Darwin's Theory |
 55%
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Select the correct statement:
1. Darwinian variations are small and directionless
2. Mutations are random and directional
3. Fitness is the end result of the ability to adapt and get selected by nature
4. All mammals except whales and camels have seven cervical vertebrae
1. Darwinian variations are small and directionless
2. Mutations are random and directional
3. Fitness is the end result of the ability to adapt and get selected by nature
4. All mammals except whales and camels have seven cervical vertebrae
Subtopic: Â Concept of Organic Evolution: Evidence |
 75%
From NCERT
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The two key concepts of Darwinian theory of evolution are
1. Fitness
2. Branching descent
3. Natural selection
4. Both (2) and (3)
1. Fitness
2. Branching descent
3. Natural selection
4. Both (2) and (3)
Subtopic: Â Other Theories of Origin of Life |Â Darwin's Theory |
 88%
From NCERT
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In modern synthetic theory, the unit of evolution is
1. Genus
2. Species
3. Population
4. Individual
1. Genus
2. Species
3. Population
4. Individual
Subtopic: Â Modern Theory of Evolution |
 62%
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