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    (Original post by rockstar101)
    Haha guess what i have..... Bio unit 2, chem unit 2, and physu2 and psychology unit 2 on thurs!!! Dnt know how im doing it. Any one of u wanna do med? What subjects r u taking
    Good Luck :cool:

    Btw how much is the examining total time for you on Thursday ??

    ( I mean all together for the 4 subjects ) ...
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    (Original post by rockstar101)
    Haha guess what i have..... Bio unit 2, chem unit 2, and physu2 and psychology unit 2 on thurs!!! Dnt know how im doing it. Any one of u wanna do med? What subjects r u taking
    I'm also doing all the unit 2 sciences. Instead of psychology I'm doing M2. Its fun.

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    (Original post by Rickrossmmg)
    How is biodiversity measured anyone?
    Within a given area such a habitat species richness is considered. The number of different species within a given area in a community at a given time.
    Within a species it is measured by genetic diversity. The number if different alleles in a gene pool of a population.

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    does anyone know where i can get the soft copy of biology revision guide book from?
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    (Original post by rockstar101)
    Haha guess what i have..... Bio unit 2, chem unit 2, and physu2 and psychology unit 2 on thurs!!! Dnt know how im doing it. Any one of u wanna do med? What subjects r u taking
    I do bio, chem, maths and psychology.. finished all my maths exams so still got the other unit 2 exams left
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    can someone.give a brief explanation.of multipotent stem cells? i read they are ready diffrentiated?

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    (Original post by Rubyturner94)
    can someone.give a brief explanation.of multipotent stem cells? i read they are ready diffrentiated?

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    you only need to know about totipotent and pluripotent stem cells.

    multipotent stem cells can develop into many cells, except a few such as extra-embryonic cells, blood cells, etc

    (Original post by examss)
    does anyone know where i can get the soft copy of biology revision guide book from?
    not sure if I know which revision guide you're talking about
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    (Original post by mynameisntbobk)
    you only need to know about totipotent and pluripotent stem cells.

    multipotent stem cells can develop into many cells, except a few such as extra-embryonic cells, blood cells, etc
    thanks

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    (Original post by mynameisntbobk)
    you only need to know about totipotent and pluripotent stem cells.

    multipotent stem cells can develop into many cells, except a few such as extra-embryonic cells, blood cells, etc
    i want to check with u:
    pluripotent can gv rise to most cell types and totipotent to all cell types...
    ok now cells in a human body are pluripotent besides liver cells?
    and embryonic cells are totipotent ryt?
    I hate this section tbh....so check it for me
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    (Original post by Daniel Atieh)
    i want to check with u:
    pluripotent can gv rise to most cell types and totipotent to all cell types...
    ok now cells in a human body are pluripotent besides liver cells?
    and embryonic cells are totipotent ryt?
    I hate this section tbh....so check it for me
    yes and yes
    Nope, human body cells are differentiated apart from pluripotent stem cells found in places such as bone marrow
    yes
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    (Original post by mynameisntbobk)
    yes and yes
    Nope, human body cells are differentiated apart from pluripotent stem cells found in places such as bone marrow
    yes
    ok gv me 3 ethics related to stem cells...
    and for e.g if they asked us why we can't replace a damaged liver using stem cell? its possible ryt? maybe coz of ethics and possible rejection/cancer ?
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    (Original post by mynameisntbobk)
    you only need to know about totipotent and pluripotent stem cells.

    multipotent stem cells can develop into many cells, except a few such as extra-embryonic cells, blood cells, etc



    not sure if I know which revision guide you're talking about
    Edexcel biology AS Revision guide
    http://www.pearsonschoolsandfecolleg...e.aspx#samples
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    (Original post by Daniel Atieh)
    ok gv me 3 ethics related to stem cells...
    and for e.g if they asked us why we can't replace a damaged liver using stem cell? its possible ryt? maybe coz of ethics and possible rejection/cancer ?
    theres the issue of cloning, misuse of stem cells, the idea that most embyonic stem cells occur due to IVF, they can't give concent to research, they will get discarded if not used and their right to life removed

    risk of rejection, mutations, difficult to specialise cells, surgical risks
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    (Original post by examss)
    Edexcel biology AS Revision guide
    http://www.pearsonschoolsandfecolleg...e.aspx#samples
    oh those, my friend got one from waterstones, you could try there? but do think it'll be worth it since the exam is in under a week.
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    (Original post by examss)
    Edexcel biology AS Revision guide
    http://www.pearsonschoolsandfecolleg...e.aspx#samples
    Amazon , Ebay , Waterstones , WHSmith .

    Edit : Just realised you meant electronic copy.
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    (Original post by mynameisntbobk)
    theres the issue of cloning, misuse of stem cells, the idea that most embyonic stem cells occur due to IVF, they can't give concent to research, they will get discarded if not used and their right to life removed

    risk of rejection, mutations, difficult to specialise cells, surgical risks
    thanks man! i thnk we almost covered everything regarding stem cells, isn't it?
    one more question...what is cloning?
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    Do you guys think that its gonna be as awful as unit 1? or nice cause unit 1 was hard?
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    (Original post by Sravya)
    Do you guys think that its gonna be as awful as unit 1? or nice cause unit 1 was hard?
    I thnk it ll be as usual i.e medium difficulty with a boundary of 59-63
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    (Original post by Daniel Atieh)
    thanks man! i thnk we almost covered everything regarding stem cells, isn't it?
    one more question...what is cloning?
    http://www.sciencedaily.com/articles/c/cloning.htm

    that explains it quite well
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    (Original post by examss)
    does anyone know where i can get the soft copy of biology revision guide book from?
    This book is amazing! has all the key words you need in an exam in bold I love it..though people have told me its too basic. I like it cause its perfect for exam revision. Last year when I sat it I just revised from the biology textbook and only got a B! a fried learnt the whole of this and its is miles smaller and got an A
 
 
 
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