biology 0.0 / 5 ? Biologylife on earthNational 5SQA Created by: meganmatthews7Created on: 25-03-16 15:51 what is biodiversity in ecosystems affected by? abiotic and biotic factors 1 of 17 what is an abiotic factor? physical factors including temperature and pH 2 of 17 what is a biotic factor? factors related directly to living organisms and include factors such as grazing and predation 3 of 17 how can humans influence biodiversity in ecosystems? through creation of pollution, habitat destruction and overexplotation of species 4 of 17 what is a biome? region of the planet with characteristic climate, flora and fauna 5 of 17 what is flora? distinctive communities of plants 6 of 17 what is fauna? animals 7 of 17 what is an ecosystem ? natural biological unit composed of habitats, populations and communities 8 of 17 what is a niche? the role an organism has within its community in an ecosystem 9 of 17 what is a population? the number of organism of the same species living in a defined area 10 of 17 what is interspecific competition ? when organisms of different species compete 11 of 17 what is intraspecific competition? when organisms of the same species compete 12 of 17 3 examples of global biomes tropical rainforest, dry grassland, tundra,shallow seas 13 of 17 2 examples that affect the global distribution of biomes temperature, rainfall 14 of 17 what is biodiversity variety and number of species 15 of 17 2 examples of abiotic factors pH, temperature 16 of 17 2 examples of biotic factors grazing, predation 17 of 17
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