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Definition of life

  1. Oct 2, 2006 #1
    My professor at ucla gave the class a working definition of life as a self-reproducing, chemical system. Is there problems with this definition?

    Well, given the definition only to work with, can we now consider gay people to be living?
     
  2. jcsd
  3. Oct 2, 2006 #2

    Math Is Hard

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    most gay people have the ability to reproduce, but may choose not to. If you want a more interesting challenge to the definition, consider humans or organisms that are sterile.
    my two cents.
     
  4. Oct 3, 2006 #3

    selfAdjoint

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    But even a celibate monk is, in and of himself, a "self-reproducing chemical system". Our body cells die and are replaced at a fearsome rate.

    The problem I see with the definition is that it may include systems that are not generally agreed to be alive. Let's discuss viruses, for example, and how about the simple chemical reaction in a petri dish that generates repeating spiral waves?
     
  5. Oct 3, 2006 #4
    Beer + DNA = life.

    everything that doesnt get beer is magic :tongue2:
     
  6. Oct 21, 2006 #5
    life ...hmm

    LIFE - I think the definition of life - "is to do some thing - does not matter what you do or what you think, just do some thing"
     
  7. Oct 23, 2006 #6
    If evolution is correct, then the chemical system that is life reproduces, some of it will mutate. If it mutates to gay person, then that mutation dies. Gays don't have an affect on general populaton anyway. That's why the general population keeps producing mutated offsprings that are gay.
     
  8. Nov 17, 2006 #7
    Life is the greatest form of organism that takes shape in all its nature to reach ultimate goal of highest form to meet the consequences.
     
  9. Nov 17, 2006 #8

    selfAdjoint

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    Just as I thought. People who are technically educated in the life sciences don't participate in discussions on the definition of life and leave them to the uninformed hoi polloi, like me!
     
  10. Nov 17, 2006 #9

    DaveC426913

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    Not having any children, I guess I'm not alive either.

    Bummer.
     
  11. Nov 17, 2006 #10

    arildno

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    Life's a piece of sh*t, when you think of it..

    Monty Python.
     
  12. Nov 17, 2006 #11

    selfAdjoint

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    Is there any serious reason why I shouldn't just move this thread to general discussion? It clearly belongs there.
     
  13. Nov 18, 2006 #12

    Mk

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    The way this is going I think it would rather be locked.

    We answered the original question, and it is simple that we can't define life all that well.
     
  14. Nov 18, 2006 #13

    selfAdjoint

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    I agree. Bye-bye. If you want to continue, do it on GD.
     
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