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Home Q & A Board Biology-Related Homework Help General Biology
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Maria Maria
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6 years ago
Where did Earth's atmosphere originate?
 
  a. Earth's gravity trapped gasses from passing comets.
  b. Gases were released from the Earth itself as it cooled.
  c. The atmosphere was derived from dust particles from the original gas cloud around the
  planet.
  d. Earths gravity trapped gasses from passing comets, gases were released from the Earth
  itself as it cooled, and the atmosphere was derived from dust particles from the original
  gas cloud around the planet.
  e. Gases were released from the Earth itself as it cooled and the atmosphere was derived
  from dust particles from the original gas cloud around the planet.

Question 2

Which of the following is the primary assumption made by researchers when designing experiments to
  model how life may have arisen?
 
  a. The chemical reactions of living things are only possible in living systems.
  b. Living organisms are composed of elements commonly found in the universe and on
  Earth.
  c. Conditions on Earth have not changed over time.
  d. Life arose on Earth from non-living matter.
  e. The development of living cells from nonliving matter was very rapid.
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cg5232cg5232
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#1
6 years ago
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Maria Author
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#2
6 years ago
Thank you Slight Smile
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#3
6 years ago
Pleasure
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