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Requirements for the development of life

Lindsay White 19 perguntas

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Perguntas do quiz (19)

  1. 1What is the definition of life?
    1. A"a biological system which has the ability to reproduce, mutate and evolve in response to changing environments"
    2. B"a material system which has the ability to self-replicate, mutate and evolve in response to changing environments"
    3. C"a material system which has the ability to reproduce, mutate and evolve in response to changing temperatures"
    4. D"a Biological system which has the ability to self-replicate, mutate and evolve in response to changing temperatures"
  2. 2What is the second law of thermodynamics?
    1. AThe entropy of an isolated system not in equilibrium will tend to increase over time, approaching a maximum value at equilibrium.
    2. BAs temperature approaches absolute zero, the entropy of a system approaches a constant minimum.
  3. 3What are Advantages of Carbon in the evolution of complex life?
    1. AStrength & Quantity
    2. BSize & structure
    3. CMass & Volume
    4. DSpeed and Velosity
  4. 4which element has the greatest ability to bond with itself creating greater variety and long Chains?
    1. ACarbon
    2. BOxygen
    3. CPotassium
    4. DHydrogen
  5. 5The element silicon has similar chemical properties to carbon – it can form four separate chemical bonds, and has been suggested, particularly by science fiction writers, as a basis for life forms, why is it not such a likely candidate as carbon?
    1. AChemical bonds are not as strong, cannot form double bonds & and is more likely to bond with Oxygen to for smaller molecules rather than long chains.
    2. BChemical bonds are not as strong, it always forms double bonds & and is more likely to bond with Oxygen to for smaller molecules rather than long chains.
    3. CChemical bonds are too strong and will not break
  6. 6Of all the requirements for life, almost all biologists would agree that water, or some other liquid, is the most important. Complex chemistry is not likely to develop far in the rigid structure of a solid; nor is it likely to develop in a vapour as it would be hard to keep all the working components together.
    1. AVerdadeiro
    2. BFalso
  7. 7Why is water "Stable"?
    1. AWater exists as a liquid over a very broad temperature range. At atmospheric pressure this range is 0 to 100°C, whereas at higher pressures the range extends upwards to 363°C. There is no other abundant molecule which significantly overlaps this stable range.
    2. BWater exists as a liquid over all temperature ranges. There is no other abundant molecule which significantly overlaps this stable range.
    3. CWater is very unstable.
  8. 8Why is water so abundant?
    1. AIt is composed of H (Hydrogen) which is the third most abundant element in the universe.
    2. BIt is composed of O (Oxygen) which is the third most abundant element in the universe.
    3. CThere it a lot of H2O on earth thus abundant.
  9. 9Why is Oxygen Chemistry very active?
    1. Alot of energy is available in chemical reactions involving free (molecular) oxygen
    2. Blot of energy is available in chemical reactions involving fixed (molecular) oxygen
    3. COxgyen emits lots of energy
  10. 10What are Environmental Conditions?
    1. ATemperature, atmospheric composition, mass and age
    2. BTime & Water present.

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BSc (Hons) Cosmos Quiz sobre Requirements for the development of life , criado por Lindsay White em 28-10-2016.
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English
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