Which one of the following options gives one correct example each of convergent evolution and divergent evolution?

 Convergent evolution  Divergent evolution
1. Eyes of Octopus and mammals  Bones of forelimbs of vertebrates
2. Thorns of Bougainvillea and tendrils of Cucurbita  Wings of butterflies and birds
 3. Bones of forelimbs of vertebrates  Wings of butterfly and birds
4. Thorns of Bougainvillea and tendrils of Cucurbita  Eyes of Octopus and mammals

 

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
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The extinct human who lives 100000 to 40000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was

1. Homo habilis                           

2. Neanderthal human

3. Cro-magnon humans               

4. Ramapithecus

Subtopic:  Evolution Prior to Ape Man: 1 | Evolution Prior to Ape Man |
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Parallelism is 

1. adaptive divergence

2. adaptive divergence of widely separated species

3. adaptive convergence of widely different species

4. adaptive convergence of closely related groups

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
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The concept of chemical evolution is based on 

1. crystallization of chemicals

2. interaction of water, air, and clay under intense heat

3. effect of solar radiation on chemicals

4. the possible origin of life by the combination of chemicals under suitable environmental conditions

Subtopic:  Examples of Chemical Evolution |
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One of the important consequences of geographical isolation is 

1. no change in the isolated fauna

2. preventing speciation

3. speciation through reproductive isolation

4. random creation of new species

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Which one of the following describes correctly the homologous structures?

1. Organs appearing only in embryonic stage and disappearing later in the adult

2. Organs with anatomical similarities, but performing different functions

3. Organs with anatomical dissimilarities, but performing same functions

4. Organs that have no function now, but had an important function in ancestors

Subtopic:  Embryological Evidence of Evolution |
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'Continuity of germplasm' theory was given by 

1. De Vries 

2. Weismann

3. Darwin

4. Lamarck

Subtopic:  Germ Plasm Theory |
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Which one of the following amino acid was not found to be synthesised in Miller's experiment? 

1. Aspartic acid

2. Glutamic acid

3. Alanine

4. Glycine

Subtopic:  Urey & Miller Experiment |
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Two geographical regions separated by high mountains are 

1. Oriental and Austrailian

2. Palaearctic and Oriental

3. Nearctic and Palaearctic

4. Neotropical and Ethiopian

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Correct order is [1991]
1. Palaeozoic       Archaeozoic      Coenozoic
2. Archaeozoic       Palaeozoic       Proterozoic
3. Palaeozoic      Mesozoic       Coenozoic
4. Mesozoic      Archaeozoic       Proterozoic

Subtopic:  Palentological Evidences of Evolution |
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