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vincent marekia
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AS
BIOLOGY740
1/2 ACTUAL
2025
PAPER
MERGED
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SCHEME
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AS
BIOLOGY
Paper 2
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Thursday 22 May 2025 Morning Time allowed: 1 hour 30
minutes
Materials For Examiner’s Use
For this paper you must have:
Question Mark
• a ruler with millimetre measurements • a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 3
• Answer all questions. 4
• You must answer the questions in the spaces provided. Do not write outside
the box around each page or on blank pages. 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).
• Show all your working. 7
8
9
TOTAL
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 75.
*jun257401201* IB/M/Jun25/G4002/V4 7401/2
• Do all rough work in this book. Cross through any work you do not want to be marked.
Answer all questions in the spaces provided.
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0 1
Figure 1 shows the arrangement of some of the blood vessels in a mammalian circulatory system.
Figure 1
0 1 .1 Name the blood vessels labelled B and E in Figure 1.
[2 marks]
B
E
0 1
.2 Give the letters of all the blood vessels shown in Figure 1 that transport
deoxygenated
blood.
[1 mark]
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