Exam (elaborations)
AQA Biology 2019 Paper 2 Higher Tier
- Institution
- University Of South Africa (Unisa)
AQA Biology 2019 Paper 2 Higher Tier
[Show more]
Seller
Follow
Content preview
iPlease iwrite iclearly iin iblock icapitals.
Centre inumber Candidate inumber
i
Surname
i
Forename(s)
Candidate isignat ure i
GCSE
BIOLOGY
Higher Tier i Paper 2H
i
H
Friday 7 June 2019
i i i Afternoon Timeallowed:1 hour45minutes
i i i i i
Materials For iExaminer’s iUse
For ithis ipaper iyou imust ihave:
a iruler Question Mark
a iscientific icalculator. 1
2
Instructions
3
Use iblack iink ior iblack iball-point ipen.
Fill iin ithe iboxes iat ithe itop iof ithis ipage. 4
Answer iall iquestions iin ithe ispaces iprovided. 5
Do iall irough iwork iin ithis ibook. iCross ithrough iany iwork iyou ido inot iwant ito
6
ibe imarked.
In iall icalculations, ishow iclearly ihow iyou iwork iout iyour ianswer. 7
8
Information
The imaximum imark ifor ithis ipaper iis i100. TOTAL
The imarks ifor iquestions iare ishown iin ibrackets.
You iare iexpected ito iuse ia icalculator iwhere iappropriate.
You iare ireminded iof ithe ineed ifor igood iEnglish iand iclear ipresentation
iin iyour ianswers.
*JUN19 4612h01*
i
IB/M/Jun19/E10 8461/2H
, 2
Do not write
outside ithe
Answer iall iquestions iin ithe ispaces iprovided. ibox
0 1 Figure i1 ishows ia ifood ichain iin ia ipond.
Figure i1
0 1 . 1 Which iterm idescribes ithe iDaphnia iin ithis ifood ichain?
[1 imark]
Tick i() ione ibox.
Apex ipredator
Primary iconsumer
Producer
Secondary iconsumer
*02*
IB/M/Jun19/8461/2H
, 3
Do not write
outside the
0 1 . 2 Draw ia ipyramid iof ibiomass ifor ithe ifood ichain. box
Label ieach itrophic ilevel.
[2 imarks]
0 1 . 3 Give ione ireason iwhy ithe itotal ibiomass iof ithe iDaphnia iin ithe ipond iis idifferent ifrom
ithe itotal ibiomass iof ithe ialgae.
[1 imark]
Question i1 icontinues ion ithe inext ipage
Turn iover i►
*03*
IB/M/Jun19/8461/2H
, 4
Do not write
outside the
Students iinvestigated ithe isize iof ithe ipopulation iof iDaphnia iin ithe ipond. box
This iis ithe imethod iused.
1. Collect i1 idm3 iof ipond iwater ifrom inear ithe iedge iof ithe ipond.
2. Pour ithe iwater ithrough ia ifine inet.
3. Count ithe inumber iof iDaphnia icaught iin ithe inet.
4. Repeat isteps i1–3 ifour imore itimes.
Table i1 ishows ithe iresults.
Table i1
Number iof iDaphnia
Sample inumber 3
iin i1 idm iwater
1 5
2 21
3 0
4 16
5 28
0 1 . 4 Calculate ithe imean inumber iof iDaphnia iin i1 im3 iof ipond iwater.
1 im3 i= i1000 idm3
[2 imarks]
Mean inumber iof iDaphnia iin i1 im3 iof ipond iwater i= iii
*04*
IB/M/Jun19/8461/2H
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller UNISA1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R50,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53022 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now