AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), November 2021
Every question from AQA GCSE Combined Science: Trilogy Biology Paper 2 (Higher), November 2021 (8464): 6 questions, 70 marks, each with its mark scheme and topic.
- Question 1 13 marks
Identify glands of the endocrine system and evaluate a new male contraceptive injection compared to existing contraceptive methods.
Biology · B5: Homeostasis and Response
- Question 2 9 marks
Describe trends and calculate the percentage decrease in government biodiversity spending from a bar chart, and state uses of peat and methods to increase UK biodiversity.
Biology · B7: Ecology
- Question 3 10 marks
Answer questions on fossil formation, calculate the range of a fossil's age, and explain classification systems including the three-domain system and modern evidence.
Biology · B6: Inheritance, Variation and Evolution · B1: Cell Biology
- Question 4 15 marks
Analyse the change in bird beak length over time by calculating rate of change, explaining natural selection and evolution, and describing evidence for species classification.
Biology · B6: Inheritance, Variation and Evolution
- Question 5 12 marks
Investigate reaction time using stopwatches and analyze the neurological and hormonal effects of caffeine and adrenaline on the nervous system.
Biology · B5: Homeostasis and Response
- Question 6 11 marks
Define 'heterozygous', determine the probability of having an affected male child using a pedigree tree and Punnett square, and explain the sudden occurrence of polydactyly via mutation.
Biology · B6: Inheritance, Variation and Evolution