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Author Topic: Edexcel BIOLOGY Doubts!!!!  (Read 133223 times)

Offline NotAbod

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #660 on: May 22, 2012, 10:59:27 am »
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Offline Deadly_king

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #661 on: May 23, 2012, 11:18:24 am »
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Offline ojwiya

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #662 on: August 06, 2012, 11:29:31 am »
hey! could you help me with these two qustions
a. what is speciation?
b. Briefly describe the roles played by reproductive isolation in speciation
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Offline NotAbod

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #663 on: December 31, 2012, 07:54:49 am »
In every unit 4 paper, there is a 5 or 6 marks question about speciation and natural selection, can someone give me an answer good enough to score full marks in that question?
Question 6 C in this paper for example
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Offline Za_shadow

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #664 on: January 08, 2013, 12:23:35 pm »
please help me

unit 1

may 2010 Q7 d) i don't understand the answer  :'(
e i) why 10000/100 not 20000/100 ??
http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/GCE%20January%202010%20-%20QP/6BI01_01_que_20100112.pdf

please helppp tomorrow is my exam :(   :-X
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Offline DrThamooth

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #665 on: April 03, 2013, 07:16:39 pm »
I have a problem with paper 3b (paper 7)
when plotting graphs ..
how should i join the points ?
should i draw a smooth curve and ignore all points which are out of it or join the anyway ?
and some graphs look like they should be joined using a ruler .. should i join all lines or just ones that fit in .. ?
Thanks in advance  :D
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Offline NotAbod

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #666 on: April 03, 2013, 07:53:27 pm »
Quote from: DrThamooth on April 03, 2013, 07:16:39 pm
I have a problem with paper 3b (paper 7)
when plotting graphs ..
how should i join the points ?
should i draw a smooth curve and ignore all points which are out of it or join the anyway ?
and some graphs look like they should be joined using a ruler .. should i join all lines or just ones that fit in .. ?
Thanks in advance  :D


Graphs in biology are joined using a ruler. Do not draw a curve or ignore a point that seems to be an error (unless they ask; they never did though)
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Offline DrThamooth

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #667 on: April 03, 2013, 08:11:05 pm »
Thank you soooo much  :D
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Offline DrThamooth

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #668 on: April 07, 2013, 02:00:23 pm »
for bio As and A2
i have the stafford book and i have ann fullick's book
i'm currently studying from the stafford book
i dont know if its enough or not
i really hope it is x_x
i really need an A atleast
so guys what do you think ?
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Offline NotAbod

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #669 on: April 08, 2013, 12:07:43 pm »
For AS I used Ann fullick's book and for A2 I'm using CJ clegg.
Never heard of the stafford book. Personally, I think sticking to one book is a good idea.
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Offline DrThamooth

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #670 on: April 08, 2013, 07:58:56 pm »
Do you think its enough ?
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Offline NotAbod

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #671 on: April 09, 2013, 01:08:41 pm »
Yes, If you know how to use it.
print the specification and always get back to it after studying a topic, just to make sure you haven't missed anything.
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Offline CvariableERIO

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #672 on: April 10, 2013, 04:47:14 pm »
Regarding the unit 3b
there is always a field report
some would require you to analyse issues (i.e. ethical, economical, social etc)
would anyone care to tell the essence of those questions
like how to answer them, the key points to spot etc
thanks in advance
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Offline maryam96

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #673 on: April 27, 2013, 01:31:49 pm »
Can someone please help me,  to solve January 2012 edexcel biology 6BI07/01 question 1) ii) , how do you plot in the standard deviations into the graph, as the standard deviation value is very small 0.09 and each box in my graph is 0.1
Thank you
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Offline NotAbod

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #674 on: April 27, 2013, 03:19:09 pm »
You can round it to 0.1 or draw it a little below 0.1  It must seem correct by eye and not 100% correct.
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