Grade 10 Life Sciences Summaries: Biotic and abiotic factors and Energy flow and nutrient cycles

Summary 1: Biotic and Abiotic factors - Abiotic factors (physiographic factors: altitude, aspect, slope) Edaphic factors (soil: type or structure, water-holding, air content, ph) Light (photosynthesis, photo period, diurnal and nocturnal, seasonal change) Temperature (exothermic, endothermic, aestivation, migration, hibernation) Water (wetlands, precipitation) Atmospheric gas and wind, Biotic factors (producers, consumers, decomposers). (8 pages)

Summary 2: Energy flow and Nutrient cycles - This summary can be used by both IEB and DOE: Terminology and explanations, food and ecological pyramids, food chains and food webs, nutrients and the nutrient cycle, oxygen cycle, water cycle, carbon cycle, nitrogen cycle. (8 pages)

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