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I declare this is my own work.
H
GCSE
COMBINED SCIENCE: TRILOGY
Higher Tier
Biology Paper 2H
Time allowed: 1 hour 15 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
• Answer all questions in the spaces provided. 5
• If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want to be TOTAL
marked.
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 70.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation in your answers.
*jun228464b2h01*
IB/M/Jun22/E10 8464/B/2H
, 2
Do not write
outside the
0 1 This question is about the cycling of water and carbon in ecosystems. box
0 1 . 1 Which reaction produces water?
[1 mark]
Tick () one box.
Aerobic respiration
Anaerobic respiration
Photosynthesis
The water cycle provides water for plants and animals on land before the water goes
into lakes and seas.
Figure 1 represents the water cycle.
Figure 1
*02*
IB/M/Jun22/8464/B/2H
, 3
Do not write
outside the
0 1 . 2 Name the processes 1 to 5 shown on Figure 1. box
[5 marks]
1
2
3
4
5
0 1 . 3 In 2007 the population of the world was 6 000 000 000
A study found that 4.5% of the population had severe water shortage.
Calculate how many people had severe water shortage.
Give your answer in standard form.
[3 marks]
Number of people (in standard form) =
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun22/8464/B/2H
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