Variation — Paper 1 · IGCSE Sciences - Co-ordinated (Double) 0654

11 A teacher measures the heights of each student in a class. All the students were born in the same year. She presents the results as a graph. Which graph is most likely to be correct? A B number of number of students students height height C D number of number of students students height height

1 marks

Answer: C

This question in 0654/11 May/June 2019

11 A farmer wants to breed sheep that will produce a high yield of milk. What is required for breeding these sheep? genetic selective natural variation breeding selection Jv v x v x v x v x x x v key J/ = yes X =no

1 marks

Answer: A

This question in 0654/12 May/June 2020

11 The graph shows the systolic blood pressure of a group of women. 60 50 40 number of 30 women 20 10 0 90 100 110 120 130 140 150 160 170 180 systolic blood pressure / mm Hg What can be concluded from the graph? A Blood pressure shows continuous variation. B Blood pressure shows discontinuous variation. C Genes affect blood pressure. D Women are more at risk of high blood pressure than men.

1 marks

Answer: A

This question in 0654/12 Oct/Nov 2020

11 The size of tomatoes is an inherited characteristic with a range of phenotypes between two extremes. What best describes this? A continuous variation B discontinuous variation C natural selection D selective breeding

1 marks

Answer: A

This question in 0654/12 Oct/Nov 2022

11 Fingerprints are classified by their shape. A class of students identified the type of fingerprint they have on the thumb of their left hand. The chart shows the results. 20 15 number of 10 students 5 0 arch tented loop whorl arch type of fingerprint Which statement about the data in the chart is correct? A Fingerprints are an example of continuous variation because the data shows a range of phenotypes. B Fingerprints are an example of continuous variation because the data shows no intermediates. C Fingerprints are an example of discontinuous variation because the data shows a range of phenotypes. D Fingerprints are an example of discontinuous variation because the data shows no intermediates.

1 marks

Answer: D

This question in 0654/12 May/June 2023

11 Fingerprints are classified by their shape. A class of students identified the type of fingerprint they have on the thumb of their left hand. The chart shows the results. 20 15 number of 10 students 5 0 arch tented loop whorl arch type of fingerprint Which statement about the data in the chart is correct? A Fingerprints are an example of continuous variation because the data shows a range of phenotypes. B Fingerprints are an example of continuous variation because the data shows no intermediates. C Fingerprints are an example of discontinuous variation because the data shows a range of phenotypes. D Fingerprints are an example of discontinuous variation because the data shows no intermediates.

1 marks

Answer: D

This question in 0654/13 May/June 2023

11 Continuous variation is defined as a … 1 … of phenotypes … 2 … . Which words correctly complete gaps 1 and 2? 1 2 A limited number between two extremes B limited number with no intermediates C range between two extremes D range with no intermediates

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2023

11 Which term describes differences between individuals of the same species? A competition B generation C selection D variation

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2023

11 The graph shows the masses of samples of two different types of potato, Y and Z. type Y type Z number of potatoes 20 40 60 80 100 120 140 160 180 200 220 240 mass / g What is shown by the graph? A Genes do not affect the mass of potatoes. B Type Y potatoes show continuous variation. C Type Z potatoes are smaller than type Y. D Type Z potatoes show discontinuous variation.

1 marks

Answer: B

This question in 0654/11 May/June 2024

12 Which graph represents variation in the height of humans? A B number of number of individuals individuals height height C D number of number of individuals individuals height height

1 marks

Answer: A

This question in 0654/11 May/June 2025