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How does our understanding of biology help us classify the diversity of organisms on Earth?: OCR GCSE Biology B questions

Every OCR GCSE Biology B exam question on B6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?, 2018–2025, with its mark scheme and examiner’s report.

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1,448 questions

  1. Q2(c)(i)

    June 2025 · Paper 1 Foundation

    1 markB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 2

  2. Q2(c)(ii)

    June 2025 · Paper 1 Foundation

    1 markB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 2

  3. Q3(a)(i)

    June 2025 · Paper 2 Foundation

    1 markB1.1 What is the genome and what does it do?B6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 3

  4. Q3(a)(ii)

    June 2025 · Paper 2 Foundation

    1 markB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 3

  5. Q1(b)

    June 2023 · Paper 1 Foundation

    2 marksB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?B1.1 What is the genome and what does it do?
    The whole paper ↗

  6. Q8(a)(iii)

    June 2022 · Paper 3 Higher

    2 marksB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 8

  7. Q3(b)

    June 2022 · Paper 4 Higher

    2 marksB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 3

  8. Q7(a)

    November 2021 · Paper 1 Foundation

    1 markB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 7

  9. Q3(c)

    June 2019 · Paper 1 Foundation

    2 marksB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 3

  10. Q4(b)(ii)

    June 2019 · Paper 2 Foundation

    2 marksB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 4

  11. Q4(d)(i)

    June 2019 · Paper 3 Higher

    1 markB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 4

  12. Q4(d)(ii)

    June 2019 · Paper 3 Higher

    1 markB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 4

  13. Q6(b)

    June 2018 · Paper 1 Foundation

    2 marksB6.3 How does our understanding of biology help us classify the diversity of organisms on Earth?
    The whole paper ↗
    The start of question 6
All 13 questions on How does our understanding of biology help us classify the diversity of organisms on Earth?, as a list
  1. June 2025, Paper 1 Foundation, Q2(c)(i) (1 mark): Which organism from Fig. 2.2 are sharks most closely related to? [1]
  2. June 2025, Paper 1 Foundation, Q2(c)(ii) (1 mark): Which organism from Fig. 2.2 are primates most closely related to? Tick (✓) one box. Amphibians Birds Rabbits [1]
  3. June 2025, Paper 2 Foundation, Q3(a)(i) (1 mark): Classify the organism that the cell in Fig. 3.1 has come from. Tick (3) one box. Animal Bacterium Plant [1]
  4. June 2025, Paper 2 Foundation, Q3(a)(ii) (1 mark): State one piece of evidence present in the nucleus of the cell in Fig. 3.1 that scientists could use to help classify the organism. [1]
  5. June 2023, Paper 1 Foundation, Q1(b) (2 marks): The table shows the number of chromosomes that different animals have in each body cell. Animal Number of chromosomes in each body cell Earthworm 36 Giant panda
  6. June 2022, Paper 3 Higher, Q8(a)(iii) (2 marks): How could scientists show that the stickleback fish are subspecies and not different species? [2]
  7. June 2022, Paper 4 Higher, Q3(b) (2 marks): Scientists used to think all the Gentoo penguins were the same species. The penguins look very similar to each other. It’s very hard to tell them apart just wit
  8. November 2021, Paper 1 Foundation, Q7(a) (1 mark): Tasmanian devils are only found on an island off the coast of Australia. They look very similar to other small animals in Australia but have been classified as
  9. June 2019, Paper 1 Foundation, Q3(c) (2 marks): Earthworms are a different type of worm. They are classified into a different group. What sources of evidence do scientists use to classify species into differe
  10. June 2019, Paper 2 Foundation, Q4(b)(ii) (2 marks): Some scientists think the small Flores humans from 50 000 years ago should be classified as a different species of humans. Suggest why they could be classified
  11. June 2019, Paper 3 Higher, Q4(d)(i) (1 mark): Which one of the other primates is the orangutan least closely related to? [1]
  12. June 2019, Paper 3 Higher, Q4(d)(ii) (1 mark): Which biological molecule can provide scientists with evidence of how closely related two species are? Tick (3) one box. Amino acid DNA Glucose Lipid [1]
  13. June 2018, Paper 1 Foundation, Q6(b) (2 marks): A cockapoo is a dog that results from the mating of two different breeds of dog; a cocker spaniel and a poodle. The cockapoo is not a new species. Explain why.

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