GCSE
BIOLOGY ACTUAL 2025 PAPER MERGED
WITH MARK SCHEME 8461/2H
H
Higher Tier Paper 2H
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY H
Higher Tier Paper 2H
Monday 9 June 2025 Morning Time allowed: 1 hour 45 minutes
For Examiner’s Use
Question Mark
, 2
Do not write
outside the
box
Materials 1
For this paper you must have:
• a ruler 2
• 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. 6
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 7
• Do all rough work in this book. Cross through any work you do not want to be
8
marked.
• In all calculations, show clearly how you work out your answer. 9
Information TOTAL
• 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.
IB/G/Jun25/8461/2H
, 3
Do not
write outside the . box
0 1 Ichthyosaurs are reptiles that lived in the sea millions of years ago.
Figure 1 shows the fossilised remains of an ichthyosaur.
Figure 1
0 1 .1 Suggest how the fossil in Figure 1 was formed after the ichthyosaur died.
[2 marks]
0 1
.2 The length of the image of the ichthyosaur in Figure 1 is 120 mm.
The real length of the ichthyosaur was 17 times longer than the image in Figure 1.
Calculate the real length of the ichthyosaur. Turn over ►
IB/G/Jun25/8461/2H
, 4
Do not write
outside the
box
Give your answer in metres.
[3 marks]
Real length of ichthyosaur = metres
IB/G/Jun25/8461/2H
BIOLOGY ACTUAL 2025 PAPER MERGED
WITH MARK SCHEME 8461/2H
H
Higher Tier Paper 2H
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY H
Higher Tier Paper 2H
Monday 9 June 2025 Morning Time allowed: 1 hour 45 minutes
For Examiner’s Use
Question Mark
, 2
Do not write
outside the
box
Materials 1
For this paper you must have:
• a ruler 2
• 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. 6
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 7
• Do all rough work in this book. Cross through any work you do not want to be
8
marked.
• In all calculations, show clearly how you work out your answer. 9
Information TOTAL
• 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.
IB/G/Jun25/8461/2H
, 3
Do not
write outside the . box
0 1 Ichthyosaurs are reptiles that lived in the sea millions of years ago.
Figure 1 shows the fossilised remains of an ichthyosaur.
Figure 1
0 1 .1 Suggest how the fossil in Figure 1 was formed after the ichthyosaur died.
[2 marks]
0 1
.2 The length of the image of the ichthyosaur in Figure 1 is 120 mm.
The real length of the ichthyosaur was 17 times longer than the image in Figure 1.
Calculate the real length of the ichthyosaur. Turn over ►
IB/G/Jun25/8461/2H
, 4
Do not write
outside the
box
Give your answer in metres.
[3 marks]
Real length of ichthyosaur = metres
IB/G/Jun25/8461/2H
