View Poll Results: Is a single celled human zygote an 'organism'?

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  • Yes, a single celled zygote is in fact an organism

    99 51.30%
  • No, a single celled zygote is not in fact an organism

    94 48.70%
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Thread: Is a single celled human zygote an 'organism'?

  1. #101
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    Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by phattonez View Post
    You may be taking AP Biology, but you don't learn much about development from AP Bio. That said, calling it a parasite is irrelevant. What matters is that this is a human cell, and it is totipotent. It will develop to become a human. It is a human organism.
    The zygote being a parasite matters as much as calling it an organism; it doesn't in either case. If this was the basis for an arguement against abortion (which it seems to be geared towards) then it is slightly more relevant, but in that case, it's parasitical nature also comes back into play. And of course, the arguement evolves from there.
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  2. #102
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    Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by repeter View Post
    If you want to find another source with that statement, take your time, I'll wait.
    Why wait?

    When you could just look it up for yourself?

  3. #103
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    fyi Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by repeter View Post
    Actually, the last quote Ian brings up is quite interesting. There might in fact be something to be said about the science of this, because you don't seem to understand, science isn't black and white.
    Interesting to those who want to dodge the question, I suppose.

    But believe it or not, the science is conclusive enough to base a decision on this one.

    Ian's rogue Dr.'s defensiveness not withstanding.

  4. #104
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    Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by Areopagitican View Post
    It's an organism. It may not be a "human" organism, but it's an organism.
    No, it isn't.

    It is a part of an organism (the mother) with the potential to become an organism.
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    rolleyes Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by MrFungus420 View Post
    No, it isn't.

    It is a part of an organism (the mother) with the potential to become an organism.
    As is evidenced by the differing DNA and the need for both the mother's and the child's immune systems to ignore the presence of the other,....

    right?

    ::::

  6. #106
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    Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by Chuz Life View Post
    As is evidenced by the differing DNA and the need for both the mother's and the child's immune systems to ignore the presence of the other,....

    right?

    ::::
    Which of those is not true after receiving an organ donation? Conception is the donation of sperm. Of course it will have a different DNA, part of it came from another person. And I already told you once, a zygote does not have an immune system. Sometimes I don't know why I bother trying to enlighten some of you.
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  7. #107
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    Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by MrFungus420 View Post
    No, it isn't.

    It is a part of an organism (the mother) with the potential to become an organism.
    it is not part of the mother, anymore than a person on life support is part of the machine

  8. #108
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    Re: Is a single celled human zygote an 'organism'?

    In no particular chronological order...
    Quote Originally Posted by Chuz
    As is evidenced by the differing DNA and the need for both the mother's and the child's immune systems to ignore the presence of the other,....
    As is evidenced by chimera organisms, organ donors and microchimerism.

    Right.

    Quote Originally Posted by Chuz
    But believe it or not, the science is conclusive enough to base a decision on this one.

    Ian's rogue Dr.'s defensiveness not withstanding.
    You clearly believe it. You just can't show it. As for my 'rogue doctor' - that's an issue you would have to take up with allexperts.com. Do you plan on describing the 'rogue dictionary' soon, too?

    Quote Originally Posted by Chuz (yes, this has previously been quoted by me already)
    As the polls show, Ian...

    Most people know better.
    I actually read through the thread itself an noticed something, Chuz. The poll says what it says - but if you look at the responses of the people who have posted here, many of those who voted 'yes' have a definition for 'organism' that differs from both mine and your use of the term - more specifically, they have one that also calls a skin/blood/sperm cell an organism.

    By their definition, a zygote is certainly an organism, as is a skin/sperm/blood cell. I'm with Tsunami on that one. It's only when you talk about 'capable of independent existence' (a concept which you seem to be refusing to talk about any more) that skin/sperm/blood cells no longer are classified as organisms. However with that addition, a zygote is also not an organism.

    Either a zygote is not an organism, or the fact that it is an organism is irrelevant. You can't have it both ways.
    Quote Originally Posted by Spud
    it is not part of the mother, anymore than a person on life support is part of the machine
    Two Three possible responses.

    Firstly, the mother is alive, so the ZEF can be part of her. Someone on life support is not a machine, so they cannot be part of it.

    Secondly, the biological connection between a mother and the ZEF is faaaaaaaaaaar more complex than that between a patient and a life support machine, by an incredibly long way. See my definition of the placenta.

    Thirdly, someone on life support is probably closest to being 'part of the machine' when they are permenantly brain dead, as at that point there is no 'person' left alive. At that point, very few people complain when the machine is switched off.
    Last edited by iangb; 01-26-10 at 01:03 PM.
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  9. #109
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    Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by Chuz Life View Post
    Why wait?

    When you could just look it up for yourself?
    When someone brings up a point, it is their responsibility to support it with facts.
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  10. #110
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    Re: Is a single celled human zygote an 'organism'?

    Quote Originally Posted by Chuz Life View Post
    Interesting to those who want to dodge the question, I suppose.

    But believe it or not, the science is conclusive enough to base a decision on this one.

    Ian's rogue Dr.'s defensiveness not withstanding.
    You might not like it because it would render your question irrelevant. For the sake of your arguement, you are willing to overlook it. I'm not, because it does in fact have validity.
    Veni. Vidi. Vici.
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    The Only Thing to Fear is Fear Itself.
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