Biology (A) 9BN0/03 May June 2019 | Edexcel A Level Past Papers With Mark Scheme

Edexcel A Level Biology A (9BN0) Jun 2019

معلم موافق رایگان بودن است.

1. Forensic Biology and DNA Analysis: Use of PCR and gel electrophoresis for forensic identification, analyzing DNA fragments, and determining relationships between individuals.

2. Ecosystem Dynamics and Conservation: Impact of deforestation on biodiversity, carbon storage in forests, conservation strategies, and ecological succession.

3. Climate Change and Global Warming: Greenhouse gas effects on climate patterns, impact on polar ice melting, and predictions using climate models.

4. Genetics and Evolution: Natural selection in changing environments, genetic variation in populations, and advantages of certain traits for survival.

5. Plant Physiology and Photosynthesis: Factors affecting chlorophyll content in leaves, role of nitrogen in plant growth, and photosynthetic efficiency.

6. Microbiology and Disease Resistance: Bacterial growth in different conditions, antibiotic resistance mechanisms, and factors affecting the spread of infectious diseases.