The lesson note includes details on niche, abiotic and biotic factors and their effects in the ecosystem, random and systematic sampling techniques, percentage abundance, methods of measuring abiotic factors, primary and secondary ecological succession and climax community.

The detailed note covers the sub topics, virus and bacterial structure, reproduction of bacteria, viral and bacterial life cycle, pathogenic nature of bacteria, transmission of pathogens, barriers for pathogens to enter, inflammation, specific immune response, antibodies, APCs, B cells, T cells, T killer cells, Hospital acquired infections, immunity, HIV and Tuberculosis.

The work sheet gives two questions related to types of waves come under topic waves in IGCSE/GCSE Physics.

It includes a note on protein synthesis comes under forensics in IAL and GCE AL unit 4 biology. This covers a detailed description on amino acid, transcription, tRNA, genetic code, translation and post transcriptional modification.

This covers the topic photosynthesis comes under unit 4 biology in IAL and GCE AL. It includes notes on ATP, abiotic and biotic factors, chloroplast, light dependent photosynthesis, calvin cycle and starch.

The lesson note includes details on circulatory system in mammals, single and double circulation, cardiac cycles, blood vessels, blood clotting atherosclerosis, risk factors for CVDs and treatment of CVDs.

It includes revision notes on ozone chemistry, green house effect, natural and anthropogenic climate change, carbon footprint, reduction of carbon foot print, carbon neutrality, sustainability and more greener chemistry.