Origin of earth dates back to 
1. 10,000-15,000 million years ago 
2. 4000-4600 million years ago 
3. 500-1000 million years ago 
4. 2000-3000 million years ago 

Subtopic:  Cosmic Evolution |
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Evolutionary biology is the study of 
1. Civilisations 
2. History of life forms on earth 
3. Hardy-Weinberg equilibrium 
4. Reproductive success
Subtopic:  Definition & Types of Evolution |
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Who finally refuted the theory of spontaneous generation and experimentally disproved it? 
1. Thomas Malthus 
2. Alfred Wallace 
3. Louis Pasteur 
4. Charles Darwin 
Subtopic:  Other Theories of Origin of Life |
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An experiment to prove that organic compounds were the basis of life, was performed by 
1. Von Helmont 
2. Oparin 
3. S. Miller 
4. Fox
Subtopic:  Urey & Miller Experiment |
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Which of the following theory is related to transfer of life from one planet to another? 
1. Theory of special Creation 
2. Theory of Biogenesis 
3. Theory of Spontaneous Generation 
4. Cosmozoic theory 
Subtopic:  Other Theories of Origin of Life |
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Stanley Miller had put the Oparin-Haldane theory to test in 1953 by creating in the laboratory, the probable conditions on the primitive earth. In the experiment simple amino acids were synthesized from which of the following mixtures, as observed after eighteen days? 
1. \(H_2, O_2, N_2~ \text {and}~ H_2O\)
2. \(CH_4, CN , H_2~ \text {and}~ O_2\)
3. \(H_2, NH_3, CH_4\) and water vapour 
4. \(NH_3, CH_4 ~\text {and} ~O_2\)
Subtopic:  Examples of Chemical Evolution |
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The proponent of the theory of spontaneous generation was 
1. Louis Pasteur 
2. Von Helmont 
3. Spallanzani 
4. Francisco Redi 
Subtopic:  Other Theories of Origin of Life |
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The English scientist who worked on the origin of life and settled in India? 
1. A.I. Oparin 
2. J. B. S. Haldane 
3. Louis Pasteur 
4. Van Helmont 
Subtopic:  Examples of Chemical Evolution |
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According to cosmozoic theory for origin of life, life comes on earth from other planets in space in the form of 
1. Spores 
2. Seeds 
3. Gametes 
4. All of these
Subtopic:  Other Theories of Origin of Life | Origin of Life |
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The theory that living organisms on the earth came from outer space is based on the study of 
1. Igneous rocks 
2. Sedimentary rocks 
3. Meteorites 
4. Moon soil
Subtopic:  Cosmic Evolution | Other Theories of Origin of Life |
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