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Origins of Life

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Before the Beginning
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Before The Beginning

Stromatolites, like these from Salkhan fossil park, India, are considered some of the oldest evidence of biological activity on Earth.

Head Scratchers

Use the resources below to answer the following questions:

  1. What are some features of hydrothermal vents that make people feel they may have contributed to the origin of life? What are some objections that people have to this theory?
  2. Why do some people feel a frozen ocean may have contributed to the origin of life? What are some problems to this theory?
  3. What effect does heat have on chemical reactions? Do you think this needs to be considered in theorizing how life originated?
  4. Why have scientists rejected the "Primordial Soup" as a valid theory for the origin of life? Are you surprised by this rejection? Why or why not?

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