All the following are examples of analogous organs except:

1. Thorn and tendrils of Bougainvillea and Cucurbita
2. Sweet potato and Potato
3. Flippers of Penguins and Dolphins
4. Eye of the Octopus and of Mammals

Subtopic:  Natural Selection |
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Industrial melanism is an example of:

 
1. Natural selection 2. Mutation
3. Racial difference 4. Predation
Subtopic:  Natural Selection |
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AIPMT - 1999

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Stabilizing selection acts to _________ in a species' population.
1. elaborate new traits
2. alter traits
3. push for directional change
4. maintain a certain phenotype

Subtopic:  Modern Theory of Evolution | Natural Selection |
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Match each item in Column I with one item in Column II and chose your answer from the codes given below.

Column I

Column II

I. Homologous organs 

II. Analogous organs

III. Vestigeal organs

1. Eye of an octopus and the eye of a mammal

2. Thorn of Bougainvillea and tendril of Cucurbita

3. Body hair and wisdom teeth in humans

 

Codes:

I II III
1. 1 2 3
2. 3 1 2
3. 2 1 3
4. 1 3 2

Subtopic:  Natural Selection |
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For natural selection to bring about evolution, the trait selected by the nature must be:

1.  Dominant 2.  Recessive
3.  Mutant 4.  Inherited
Subtopic:  Natural Selection |
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