Exam (elaborations)
JUNE 2024 4bi1-1b QP Edexcel IGCSE Biology
JUNE 2024 4bi1-1b QP Edexcel IGCSE Biology
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Please check the examination details below before entering your candidate informationCandidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International GCSE (9-1)
Friday 10 May 2024
Morning (Time: 2 hours) Paper
reference 4BI1/1B 4SD0/1B
Biology
UNIT: 4BI1
Science (Double Award) 4SD0
PAPER: 1B
You must have: Total Marks
Ruler, calculator
Instructions
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 110.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P75813A
©2024 Pearson Education Ltd.
F:1/1/1/1/1/1/1/1/1/
*P75813A0132*
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 The diagram shows part of a food web from an oak woodland.
tick blue jay
beetle
ant
squirrel
mouse
DO NOT WRITE IN THIS AREA
deer
caterpillar
oak tree
DO NOT WRITE IN THIS AREA
2
*P75813A0232*
, (a) (i) Which is the producer in this food web?
(1)
DO NOT WRITE IN THIS AREA
A beetle
B deer
C oak tree
D tick
(ii) Draw a food chain, from this web, that includes the mouse and contains four
trophic levels.
(2)
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(iii) Which one of these organisms is in two different trophic levels in this
food web?
(1)
A ant
B blue jay
C caterpillar
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D mouse
3
*P75813A0332* Turn over
, (b) A tick is a small spider-like organism that bites and then takes in blood from the
mammals as it feeds.
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This is a magnified image of a tick.
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A B
(Source: © Evgdemidova / Shutterstock)
(i) The actual length of the tick, as shown by line A-B, is 3.5 mm.
Calculate the magnification of the image of the tick.
(2)
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magnification = ×.............................................................
4
*P75813A0432*
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