Combined Science 8464/2H June 2020

AQA GCSE Combined Science (8464) Jun 2020

معلم موافق رایگان بودن است.

The exam paper explores advanced biological concepts focusing on genetics, ecosystems, and human physiology. Key topics include DNA structure and genome applications, biodiversity and environmental impact, reflex actions, and reaction times. Questions cover meiosis, hormone regulation, advantages and disadvantages of asexual reproduction, and inheritance patterns, with emphasis on cystic fibrosis and embryo screening methods. Evolutionary studies analyze mass extinction timelines and primitive life forms. Environmental sections address deforestation causes and impacts, emphasizing global ecological changes. Keywords: DNA structure, biodiversity, reflex actions, meiosis, cystic fibrosis, embryo screening, asexual reproduction, deforestation, mass extinction, hormone regulation, evolution.