Combined Science 8464/2F June 2021

AQA GCSE Combined Science (8464) Jun 2021

معلم موافق رایگان بودن است.

The November 2021 GCSE Combined Science Biology Paper 2 (Foundation Tier) explores genetics, reaction time studies, food chains, and climate change. Topics include chromosomes, genetic inheritance, dominant and recessive alleles, and the impact of caffeine on human reactions. It examines evolutionary processes, evidence of adaptation, and the role of fossil records. Climate change discussions focus on carbon dioxide emissions from deforestation and meat production. The endocrine system is analyzed, addressing glands, hormone functions, and reproduction. Biodiversity conservation strategies and their benefits are emphasized. Keywords: biology, genetics, evolution, reaction time, climate change, biodiversity, endocrine system, reproduction.