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CfE Advanced Higher Biology 2015/2016

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Original post by Pennyarcade
You can get by using 10 years of past paper marking schemes for notes at AH lol. That's what I used


Everyone has different learning/revision skills and if that worked for you that's great! All I'm saying is a textbook would be nice, other course and the old advanced higher biology had one. I'm doing all I can to revise and get my head round things and I only hope it will pay off in the end


Aw cute you changed your avatar

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Reply 382
Original post by Asklepios
For each x-value on the graph, we're not 100% certain what the true y-value should be. Hence there are error bars. Standard error of the mean (SEM) is an estimate of the standard deviation of the true mean calculated from sample values. As a crude estimate, if SEMs are overlapping then there isn't likely to be a significant difference between means.

The other part of this question is based on the word 'reliable.' For results like this to be reliable the sample means should be calculated from a decent sample size and error bars for SEM should be included to give an indication of this.


thank you that makes sense :smile:
Reply 383
Original post by HiddenNinja01
Answer should be D as all the other answers have overlapping error bars and therefore results are not significant. C doesn't display error bars and therefore is invalid.



thank you that makes sense :smile:
Reply 384
Original post by Asklepios
Note that 0.4 hours is not the same as 40 minutes. There are 60 minutes in an hour not 100.


Whilst noting that, i still dont get how to solve it, totally confused myself in the attempt
Original post by Merv97
Whilst noting that, i still dont get how to solve it, totally confused myself in the attempt


If 20% = 4 h, then what is 1% and hence 12%?
Reply 386
Original post by Asklepios
If 20% = 4 h, then what is 1% and hence 12%?


from those calculations u get 2.4 i believe, and the only way i found it possible to get C was by taking away 0.16 from 2.4. however i dont understand why u need to do that which is why i asked
Original post by Merv97
from those calculations u get 2.4 i believe, and the only way i found it possible to get C was by taking away 0.16 from 2.4. however i dont understand why u need to do that which is why i asked


2.4 h = 2.4 x 60 minutes = 144 minutes = 2 h 24 minutes


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Original post by Asklepios
There are plenty of biology textbooks out there, and there is a set of learning outcomes. Don't see why there has to be one specific to the course. Yous are at AH level now - should be able to manage your own learning!


Original post by redddddd
This is just beyond ridiculous, how is a person supposed to revise solely from scholar and the few notes that you have from school? Scholar has far too much and you don't know which bits you are supposed to learn and which bits you are supposed to leave out.
I wouldn't be surprised if the exam paper is all messed up as well.
What I don't understand is how difficult is it to release a textbook when you have had two years to make it and you specialise in that field.


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Original post by Pennyarcade
Seconded. Unis gonna hit yous like a train

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I agree with Askle and Penny to a certain extent redd, cause imo Scholar has ample notes to be able to self teach AH bio and you can use the old AH questions to revise if you can be arsed sifting through what is relevant and not. I managed to bring myself up from 40% in the prelim to now geting low 70s by just using scholar.

However that being said that being said there is still a major lack of resources out there for CfE as you would expect being its first year, and yeah that is what it is like at uni but at least the uni resources are not filled with stupid mistakes. End of the day alot of people paid for those model papers and to get that piece of **** just isn't what yer wanting.
Original post by Zain-A
I agree with Askle and Penny to a certain extent redd, cause imo Scholar has ample notes to be able to self teach AH bio and you can use the old AH questions to revise if you can be arsed sifting through what is relevant and not. I managed to bring myself up from 40% in the prelim to now geting low 70s by just using scholar.

However that being said that being said there is still a major lack of resources out there for CfE as you would expect being its first year, and yeah that is what it is like at uni but at least the uni resources are not filled with stupid mistakes. End of the day alot of people paid for those model papers and to get that piece of **** just isn't what yer wanting.


Use uni resources then? You have learning outcomes

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Original post by Asklepios
Use uni resources then? You have learning outcomes

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I'm happy using what I've got, I'm just saying if a course is gonna be introduced at least introduce it right. Especially if the resources are being produced to make a profit.
How is everyone feeling for this? Got a 71% in my last model paper so feeling good :smile:
Reply 392
Original post by Zain-A
How is everyone feeling for this? Got a 71% in my last model paper so feeling good :smile:


Mc and section B aren't too much of a problem, minus a few awkward questions. Need to learn essays though:frown:
Also you never know what you need to get an A cus of the investigation, might as well just try our best lol

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Original post by Yammy
Mc and section B aren't too much of a problem, minus a few awkward questions. Need to learn essays though:frown:
Also you never know what you need to get an A cus of the investigation, might as well just try our best lol

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Need a B so high 60s low 70s is good enough for me haha

Yeah thats my next step too, do all the essays in the model papers.
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How do I do this question, I keep getting 2.75 X 10^6 but that isn't an option!
Original post by Charlotte B
image.jpg
How do I do this question, I keep getting 2.75 X 10^6 but that isn't an option!


I work out the volume to be 8*10^-6 cubic centimetres, containing 22 cells. The total volume of the culture is 10 cm^3, so for the total cell count do 10/(8*10^-6)= 1.25*10^6 then multiply this by 22 to get 2.75*10^7
Original post by Treen98
I work out the volume to be 8*10^-6 cubic centimetres, containing 22 cells. The total volume of the culture is 10 cm^3, so for the total cell count do 10/(8*10^-6)= 1.25*10^6 then multiply this by 22 to get 2.75*10^7


Ah I see thank you so much I was doing 22/8x10^-6 but now I understand where I've gone wrong!
Reply 397
Anyone know any good resources to practice the problem solving questions? They always trip me up :frown:
Original post by Yammy
Mc and section B aren't too much of a problem, minus a few awkward questions. Need to learn essays though:frown:
Also you never know what you need to get an A cus of the investigation, might as well just try our best lol

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Hey by any chance did your name used to be muchensmile? How did you change it if it was?
Reply 399
Original post by Zain-A
Hey by any chance did your name used to be muchensmile? How did you change it if it was?


Yeah changed it. I emailed TSR moderators to change it for me.

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