AQA iGCSE Biology Higher 17th May - REPLY!!

Wut did people get for the percentage increase in length from Sun Bear to Polar bear pls? I got 39%, but people got (i think) 64% for their answer. Anyone else get 39%?

Reply 24

Original post by fk.harris

Also in the Carbon Cycle question I described every stage in detail just forgor to write which part A B C D was - surely I still get the marks!???

Posted from TSR Mobile

yh dw about that

Reply 25

Original post by fk.harris

Did the Snail Q have anything to do with Natural Selection

Posted from TSR Mobile

No it didn't, cos the q said the snails were from the same species. It was asking for how variation developed in the snail population. (So variation not speciation)

Reply 26

Original post by ameliastreet00

this paper was awful!! any predicted grade boundaries???

Posted from TSR Mobile

I reckon 74/90 for A*

Reply 27

fk.harris

Will there be an unofficial mark scheme going up for this paper?

Posted from TSR Mobile

Reply 28

chessmaster123

3

Very difficult to tell with these types of questions - natural selection was definitely included; whether the mark scheme wants speciation is another matter - if it was speciation then I don't think the snails would've have become separate species. In order for the different banding patterns to arise however there must be different habitats for the snail to blend in to, to give it a higher chance of survival.

Reply 29

HannahAlice123

I did igcse biology AQA on Tuesday.
I think it went okay...
Chemistry tomorrow!

Reply 30

Original post by HannahAlice123

I did igcse biology AQA on Tuesday.
I think it went okay...
Chemistry tomorrow!

Same good luck :wink:

Reply 31

Original post by mcdoogy

I messed up quite a bit of this. Didn't even have time to start the final 4 mark question.

I feel like the questions were too confusing and broad that it was difficult to decide on an answer. For example, the 1 mark question on the purpose of the lungs could of been loads of things:

"to oxygenate deoxygenated blood"
"to diffuse oxygen into the bloodstream"
"to absorb oxygen and remove waste carbon dioxide"

The 6 marker was ok though, seemed confusing at first but I managed to understand it eventually.

What do you guys think the grade boundaries will be like? :redface:

I think most people in my year found it difficult because it didn't focus a lot on human biology. I agree that the questions were often vague. Loads of them were one markers but could easily have 2,3,4... Unfortunately biology tends to be stupidly ambiguous though. I'm pretty sure the boundaries will be low,i reckon at least like 80% for an A* max

Reply 32

om18999

6

Original post by mcdoogy

I messed up quite a bit of this. Didn't even have time to start the final 4 mark question.

I feel like the questions were too confusing and broad that it was difficult to decide on an answer. For example, the 1 mark question on the purpose of the lungs could of been loads of things:

"to oxygenate deoxygenated blood"
"to diffuse oxygen into the bloodstream"
"to absorb oxygen and remove waste carbon dioxide"

The 6 marker was ok though, seemed confusing at first but I managed to understand it eventually.

What do you guys think the grade boundaries will be like? :redface:

I said that the function of the lungs was to 'ventilate the body', do you think that would be correct??

Reply 33

Original post by chessmaster123

Very difficult to tell with these types of questions - natural selection was definitely included; whether the mark scheme wants speciation is another matter - if it was speciation then I don't think the snails would've have become separate species. In order for the different banding patterns to arise however there must be different habitats for the snail to blend in to, to give it a higher chance of survival.

I put natural selection, but it easily could have been the beginnings of speciation because technically any adaptation from a species will cause speciation. I think even if someone did talk about speciation and that wasn't technically the answer, since they've still explained and included "gene mutation" and the importance of different habitat/environment they should be fine.

Reply 34

Original post by laurendean

I said that the function of the lungs was to 'ventilate the body', do you think that would be correct??

its a one marker at the beginning of the paper, so they'll probably be bare lenient. I bet they will except that

Reply 35

Earlofthegrey

11

Anyone got any paper 2 predictions for topics. I ****ed the paper one up a bit and I need an A* to to medicine so I'm have a breakdown

Reply 36