Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY 8461/1H ACTUAL 2025 PAPER MERGED
WITH MARK SCHEME H
Higher Tier Paper 1H
For Examiner’s Use
Tuesday 13 May 2025 Afternoon Time allowed: 1 hour Question Mark
45
minutes 1
Materials
For this paper you must have: 2
• a ruler
• a scientific calculator. 3
Instructions
4
• Use black ink or black ball-point pen.
• Pencil should only be used for drawing.
5
• Fill in the boxes at the top of this page.
• Answer all questions in the spaces provided.
• 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 7
marked.
8
TOTAL
, 2
Do not
write
outside the
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 100.
• 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.
8461/1H
IB/G/Jun25/8461/1H
, Answer all questions in the spaces provided.
3
0 1 Do not
write
outside the
box
box
0 1
0 1
0 1
0 1
Measles is an infectious disease caused by a pathogen.
.1 What type of pathogen causes measles?
[1 mark]
.2 Give one way measles is spread from one person to another person.
[1 mark]
Turn over ►
IB/G/Jun25/8461/1H
.3 One symptom of measles is pain.
, 4
Do not
write
outside the
*02*
IB/G/Jun25/8461/1H
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY 8461/1H ACTUAL 2025 PAPER MERGED
WITH MARK SCHEME H
Higher Tier Paper 1H
For Examiner’s Use
Tuesday 13 May 2025 Afternoon Time allowed: 1 hour Question Mark
45
minutes 1
Materials
For this paper you must have: 2
• a ruler
• a scientific calculator. 3
Instructions
4
• Use black ink or black ball-point pen.
• Pencil should only be used for drawing.
5
• Fill in the boxes at the top of this page.
• Answer all questions in the spaces provided.
• 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 7
marked.
8
TOTAL
, 2
Do not
write
outside the
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 100.
• 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.
8461/1H
IB/G/Jun25/8461/1H
, Answer all questions in the spaces provided.
3
0 1 Do not
write
outside the
box
box
0 1
0 1
0 1
0 1
Measles is an infectious disease caused by a pathogen.
.1 What type of pathogen causes measles?
[1 mark]
.2 Give one way measles is spread from one person to another person.
[1 mark]
Turn over ►
IB/G/Jun25/8461/1H
.3 One symptom of measles is pain.
, 4
Do not
write
outside the
*02*
IB/G/Jun25/8461/1H
