Combined Science 8464/2H June 2021

AQA GCSE Combined Science (8464) Jun 2021

معلم موافق رایگان بودن است.

The November 2021 GCSE Combined Science Biology Paper 2 (Higher Tier) addresses endocrine system functions, hormone interactions, and reproductive health, including evaluation of male contraceptives. Biodiversity conservation topics include peat bog protection, deforestation impacts, and measures to enhance biodiversity. Evolutionary biology explores fossil formation, domain classification, and evolutionary processes through bird beak length changes. Reaction time investigations assess caffeine effects on neurotransmission and adrenaline′s role in heart rate regulation. Genetic disorders are analyzed through inheritance patterns, Punnett squares, and mutation origins. Keywords: biology, endocrine system, biodiversity, evolution, reaction time, genetics, inheritance, neurotransmission.