AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), 2023
Every question from AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), 2023: 6 questions, 70 marks, each with its mark scheme and topic.
- Question 1 11 marks
Describe meiosis and inheritance in humans, then use a Punnett square to determine the probability of polydactyly and explain advantages of embryo screening.
Biology · B6: Inheritance, Variation and Evolution
- Question 2 8 marks
Explain why the percentage of extinct species is only an estimate, identify the evidence used to study extinct species, and explain how the evolution of antibiotic-resistant C. difficile can be slowed down.
Biology · B6: Inheritance, Variation and Evolution · B3: Infection and Response
- Question 3 12 marks
Describe how to investigate the effect of distance from a river on plant species diversity, interpret the results, identify an abiotic factor, and explain the environmental implications of increasing cow numbers.
Biology · B7: Ecology · Biology Required Practicals
- Question 4 10 marks
Classify salmon and sea lice, describe how to selectively breed salmon with fewer sea lice, and explain the advantages and disadvantage of selective breeding.
Biology · B6: Inheritance, Variation and Evolution
- Question 5 11 marks
Recall facts about IVF treatment, describe how IVF hormones prepare the uterus, and calculate the ratio of successful to unsuccessful treatments from a results table.
Biology · Required Practicals · B5: Homeostasis and Response · Biology Required Practicals
- Question 6 18 marks
Answer questions on homeostasis, body temperature, and hormonal control in a swimmer.
Biology · B5: Homeostasis and Response