# Maths skills needed for AS-level Biology?

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1. Hi, I'm doing Edexcel AS-level Biology (new 2015 spec) and was wondering what Math skills I will be needing for the exams. I find it difficult to substitute figures that have units (µm^-2) into formulas. Recently I came across another alternative to the Fick's Law equation which can be seen below. And I can't even follow the example. I must sound silly as I know all you do is substitute the figures but all the different units to different powers really throws me off. Someone please explain or push me in the right direction I'm struggling so much!!
2. Its all stuff like reading from graphs, percentage changes, working our simple ratios, understanding the difference between a correlation/causation, don't sweat it! If you got a B at GCSE maths you'll find it a breeze
I'm pretty sure ficks law is just: area of diffusion surface x difference in concentration divided by the thickness of the surface the diffusion takes place.
For next year make sure your percentage change skills are fabulous and you can do simple area calculations this year and its no real stress! Im not that great at maths and i've managed to do ok so far!
xxx
3. You only need basic mathematics, and a bit of common sense for A-level Biology (some calculation can seem hard at first, but if you actually sit down and read what has given to you it will all make sense).
4. if you look at the AS spec on the edexcel website and scroll down to the bottom of the document it will give you a list of all the maths skills, as well as ones in bold that are only for the full A-level
I'm trying not to worry as well- i hate maths!
5. Thanks a lot everyone! I'm feeling much more confident now

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