AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), 2019
Every question from AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), 2019: 6 questions, 70 marks, each with its mark scheme and topic.
- Question 1 13 marks
Investigate the effect of drinking different amounts of caffeine on reaction time using a ruler-drop test, including method, data interpretation, control variables and why the response is not a reflex action.
Biology · B5: Homeostasis and Response
- Question 2 9 marks
Identify another greenhouse gas, state two effects of climate change, and describe how carbon from the atmosphere is cycled through living organisms in the carbon cycle.
Biology · B7: Ecology · B4: Bioenergetics
- Question 3 9 marks
Answer a set of questions on genetic engineering, including the role of vectors, why herbicide-resistant wheat gives higher yield, examples of genetic engineering, and the importance of the Human Genome Project.
Biology · B6: Inheritance, Variation and Evolution · B7: Ecology
- Question 4 12 marks
Classify animal adaptations, explain how orchid adaptations aid survival and competition, describe how flower colour may have evolved by natural selection, and use amino acid sequence data to identify the orchid species most closely related to an ancestral species.
Biology · B7: Ecology · B6: Inheritance, Variation and Evolution · B4: Bioenergetics
- Question 5 13 marks
Evaluate and improve a quadrat sampling method, calculate the estimated population of daisies in a school field, and explain how biotic and abiotic factors cause uneven distribution.
Biology · Required Practicals · B7: Ecology · B4: Bioenergetics · Biology Required Practicals
- Question 6 14 marks
Answer questions about homeostasis, blood glucose control, diabetes test data, insulin concentrations, and why starving children may die after eating lychee fruits.
Biology · B5: Homeostasis and Response · B4: Bioenergetics