When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed  
1. Convergent evolution
2. Divergent evolution
3. Microevolution
4. Co-evolution 

Subtopic:  Definition & Types of Evolution |
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Industrial melanism as observed in peppered moths proves that:

1. Melanism is a pollution-generated feature.
2. The true black melanic forms arise from a recurring random mutation.
3. The melanic form of the moth has no selective advantage over lighter from the industrial area.
4. The lighter form of the moth has no selective advantage either in a polluted industrial area or a non-polluted area.

Subtopic:  Natural Selection |
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Adaptive radiations refers to 
1. Power of adaptation in an individual to a variety of environments.
2. Adaptations due to geographical isolation.
3. Evolution of different species from a common ancestor.
4. Migration of members of a species to different geographical areas.
 

Subtopic:  Darwin's Theory |
 55%
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The finches of Galapagos islands provide evidence in favor of 
1. Biographical evolution
2. Special creation
3. Evolution due to mutation
4. Retrogressive evolution 

Subtopic:  Darwin's Theory |
 76%
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One of the important consequences of geographical isolation is:

1. Random creation of new species
2. No change in the isolated fauna
3. Preventing speciation
4. Speciation through reproductive isolation

Subtopic:  Concept of Speciation |
 75%

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Select the correct statement from the following: 

1. Mutations are random and directional.
2. Darwinian variations are small and directionless.
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:  Darwin's Theory |
 79%
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Amongst the human ancestors the brain size was more than 1000 cc in 
1. Homo habilis
2. Homo neanderthalensis
3. Homo erectus
4. Ramapithecus

Subtopic:  Introduction to Human Evolution |
 81%
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The concept of chemical evolution is based on:

1. Possible origin of life by a combination of chemicals under suitable environmental conditions.
2. Crystallization of chemicals
3. Interaction of water, air, and clay under intense heat
4. Effect of solar radiation on chemicals 

Subtopic:  Examples of Chemical Evolution |
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Thorn of Bougainvillea and tendril of Cucurbita are examples of:

1. Retrogressive evolution 2. Analogous organs
3. Homologous organs 4. Vestigial organs 
Subtopic:  Definition & Types of Evolution |
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Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?  
1. Wings of honey bee and wings of crow - Homologous organs
2. Thorn of Bougainvillea and tendrils of Cucurbita - Analogous organs
3. Nictitating membrane and blind spot in human eye - Vestigial organs
4. Nephridia of earthworm and Malpighian tubules of cockroach - Excretory organs
 

Subtopic:  Definition & Types of Evolution |
 72%
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