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A level Biology: Post your doubts here!

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emma914

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Hello guys, I'm revising for my A level biology paper and I'm so confused on how to explain the menstrual cycle,how those hormones function
Can someone please tell me a simpler way to get it,or summarized notes on it could help as well
 
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emma914

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someone please help me on vectors in polar form. Like,how do you get a distance from a line to a plane?
 
Shada Mohammed

Shada Mohammed

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Guys if some one who has the course book, kindly take a photo of the pages related to Oxidative phosphorylation and ETC. I will appreciate it.
 
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AlexMan

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If anyone knows about this please answer:

I want my exam to be re-marked by CIE and i know that i will have to choose one of 3 steps, but i've looked it up and i dont think there is an option to completely re-check the exam. I've read that they only check to make sure they've added results up properly and not forgotten to mark any questions.
If someone knows whether they can actually PROPERLY re-check, then please tell me.

:|
 
Shada Mohammed

Shada Mohammed

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AlexMan said:
If anyone knows about this please answer:

I want my exam to be re-marked by CIE and i know that i will have to choose one of 3 steps, but i've looked it up and i dont think there is an option to completely re-check the exam. I've read that they only check to make sure they've added results up properly and not forgotten to mark any questions.
If someone knows whether they can actually PROPERLY re-check, then please tell me.

:|
Click to expand...

Hey remark means to add up the marks and to see whether they haven't given you marks in some areas while rechecking involves checking your paper completing and evaluating your performance as if they haven't checked your paper that's all I know you can check with your exam center or your school about the options of EQR. Moreover, there is a service where you can get a copy of your script and get your exam paper either get remarked or rechecked also. You can also check only one component, the one you think you have done it very well and think there is something wrong with the checking procedure. If I were you, I would recheck my paper because remarking is most of the times accurate.
 
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AlexMan

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Oh so they're different forms for re-marking and re-checking.
I'll make sure tomorrow with my teachers, thanks a lot :)
 
umer salman

umer salman

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i want biology <9000> past papers ,combined can any one help . or please tell me the codes for the papers given in pakistan for theory and mcqs,
 
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Awesome12

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In the preparation of the slide for an electron microscope, why do we:

1 - Apply wax to it?

2 - Slice it?
 
umer salman

umer salman

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can any one help me ,i need a e book of
Cambridge International AS and A Level Biology Coursebook with CD-ROM <fourth or the third edition > ,
please send me a link
 
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***amd***

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Awesome12 said:
In the preparation of the slide for an electron microscope, why do we:

1 - Apply wax to it?

2 - Slice it?
Click to expand...
1- dunno why.

2- coz electron micrographs are colourless and can only show 2D images, so sample cells are supposed to be cut (try to stay attentive in class:p)
 
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