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    (Original post by Bianca 16)
    it was definitely a 3 marker
    dOES ANYONE KNOW THE ANSWER TO THE BRAIN HYPOTHALAMUS QUESTION IN BI TODAY AND YEAH DID ANYONE HAVE FRENCH FOUNDATION TODAY
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    For the question which wanted you to give the molecule for growth did every one put proteins.
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    (Original post by chrlhyms)
    could i still get 3 marks without specifically saying vasoconstriction?
    was it not vasodilation
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    (Original post by Zellaforever)
    was it not vasodilation
    Wasn't it asking how to reduce heat loss in terms of blood vessels?
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    (Original post by chrlhyms)
    Wasn't it asking how to reduce heat loss in terms of blood vessels?
    yes that was the question I dont know if my answer is correct tho
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    (Original post by Zellaforever)
    yes that was the question I dont know if my answer is correct tho
    I think either is valid actually because you could reduce heat loss by doing vasodilation or constriction. I just said the process of the blood vessels and blood moving but forgot the vasoconstriction so i think i lost a mark there
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    (Original post by chrlhyms)
    could i still get 3 marks without specifically saying vasoconstriction?
    I don't know but i'll pray for you
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    (Original post by chrlhyms)
    I think either is valid actually because you could reduce heat loss by doing vasodilation or constriction. I just said the process of the blood vessels and blood moving but forgot the vasoconstriction so i think i lost a mark there
    not really vasodilation increases heat loss while vasoconstriction reduces heat loss just checked the textbook
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    the question about Malaria and sickle cell disease. It wasn't in revision guide or book
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    (Original post by Bianca 16)
    not really vasodilation increases heat loss while vasoconstriction reduces heat loss just checked the textbook
    So, I was right?
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    (Original post by chrlhyms)
    I think either is valid actually because you could reduce heat loss by doing vasodilation or constriction. I just said the process of the blood vessels and blood moving but forgot the vasoconstriction so i think i lost a mark there
    vasoconstriction reduces heat loss vasodilation increases heat loss just checked the textbook
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    IT WAS GOOD but on the Sickle cell anaemia and malaria question I was truly baffled and the mean question
    That last question was beautiful
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    (Original post by Zafirah.1)
    the question about Malaria and sickle cell disease. It wasn't in revision guide or book
    It was on the B1 sample paper i did, you were basically meant to say that people who have sickle cell anaemia are more likely to be resistant to malaria so they reproduce lots which then carries on the recessive allel meaning more people have sickle cell anaemia. You could of said due to poor countries being prevalent with malaria they could over populate meaning higher chance of offspring having sickle cell anaemia due to the parents being carriers
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    Sickle cell one was about resistance, evoloution, passing down the disease to offspring, etc

    Posted from TSR Mobile
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    (Original post by MohAhmedRS)
    For the question which wanted you to give the molecule for growth did every one put proteins.
    Yh

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    I wrote about vasodilation in a LOT of detail for that question would still get 0 marks?
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    (Original post by chrlhyms)
    It was on the B1 sample paper i did, you were basically meant to say that people who have sickle cell anaemia are more likely to be resistant to malaria so they reproduce lots which then carries on the recessive allel meaning more people have sickle cell anaemia. You could of said due to poor countries being prevalent with malaria they could over populate meaning higher chance of offspring having sickle cell anaemia due to the parents being carriers
    what year was that past paper?
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    Last minute nitrogen cycle revision paid off
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    (Original post by BV235)
    IT WAS GOOD but on the Sickle cell anaemia and malaria question I was truly baffled and the mean question
    That last question was beautiful
    For real the mean question I put 26 but realized it 6.5 because it's PER week🙄. And for the malaria thing I searched it up and it's because sickle cell has a faulty gene that gives it resistance to malaria. Utter nonsense never even learnt
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    On the 2 marker about how auxins kill weeds:

    I said that selective weedkillers kill broad-leaved plants, but narrow-leaved plants remain unaffected. This ensures a higher crop yield.

    Is this wrong as I didn't include the role of auxins?
 
 
 
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