The first cellular form of life evolved
1. in air
2. on land
3. in water environment
4. in deep soil
Subtopic:  Examples of Chemical Evolution |
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Level 1: 80%+
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Which of the following statement is incorrect with reference to origin of life? 
1. Origin of life is considered as a unique event in the history of universe 
2. Origin of life has relation with the origin of earth 
3. There has been a gradual evolution of life forms after origin of life 
4. Origin of life occurred simultaneously in water as well as in terrestrial conditions
Subtopic:  Cosmic Evolution | Examples of Chemical Evolution |
 86%
Level 1: 80%+
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Which of the following statements is TRUE?

1. Prokaryotes evolved before eukaryotes.
2. Eukaryotes evolved before prokaryotes.
3. Prokaryotes and eukaryotes evolved at approximately the same time.
4. It is unclear whether prokaryotes or eukaryotes evolved first
Subtopic:  Examples of Chemical Evolution |
 84%
Level 1: 80%+
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Oparin and Haldane proposed that:
I: First form of life could have come from pre-existing non-living organic molecules.
II: Formation of life was preceded by chemical evolution.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Examples of Chemical Evolution | Urey & Miller Experiment |
 83%
Level 1: 80%+
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Louis Pasteur's experiments conclusively disproved spontaneous generation for contemporary life, but this creates an apparent paradox for evolutionary theory regarding the origin of first life forms. Which analysis BEST resolves this conceptual challenge:
1. Pasteur's experiments apply only to modern conditions; primitive Earth had different physical and chemical conditions that could support abiogenesis from non-living matter through gradual chemical evolution
2.  Pasteur's work was incorrect; spontaneous generation occurs continuously but is too slow to observe in laboratory conditions
3. Life was created only once and has continued unchanged since then; evolution doesn't apply to life's origin
4. The paradox cannot be resolved; science must accept supernatural intervention for life's origin
Subtopic:  Origin of Life: Chemical Evolution: 1 | Origin of Life: Chemical Evolution: 2 | Examples of Chemical Evolution |
Level 4: Below 35%
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