The carbon in these rocks may return back to the atmosphere as carbon dioxide during weathering or volcanic eruptions. Are large and move alot, so therefore have breathing systems. Ethics — intensive farming of animals battery hens and pigs is considered cruel. Animal cells do not have a cell wall. CrashCourse 7, views. For exams o past papers, you can attend a course at venues around the country, in your school or online - whatever suits your.
SPEC* I used these notes alongside past paper questions and CGP workbook questions to privately tutor this specification.
Biology b3 revision
AQA B3 Revision Notes. Notes for the AQA GCSE Biology module: B3. These have been made according to the specification and cover all the relevant topics for.
Biology B3 Revision Notes. Everything you need to know for AQA Biology B3. Gills -
Pyramids of biomass Each bar on a pyramid of biomass shows the mass of living material at that stage of the food chain — how much all of the organisms at each level would weigh if you put them all together.
Biology B3 Revision Notes Revision Cards in GCSE Biology
Report Sat 13th March, The Carbon Cycle Carbon is constantly moving between the atmosphere, the soil and living things. Aphids greenfly are a pest, they eat roses and vegetables. Biomass pyramids are nearly always the right shape pyramid shape Energy transfer and energy flow Material and energy are both lost at each stage of the food chain.
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Video: Gcse biology b3 revision notes for cxc GCSE Biology The circulatory system (OCR 9-1)
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This destroys the natural habitats of wild creatures and can also result in soil erosion.
Freezing — stops micro-organisms respiring or reproducing at all. Nitrogen — fixing bacteria in the roots and soil.
SlideShare Explore Search You. There can even be a risk to humans. Unsubscribe from Science and Maths by Primrose Kitten? Interpreting data on energy flow 80 kJ 10 kJ kJ 40 kJ The numbers show the amount of energy available to the next level.