Abiotic and Biotic factors B4.1.2

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5 Terms

1
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what are biotic factors

living factors e.g woodland or plants

2
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what are abiotic factors

non-living factors e.g rainfall or temp

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BIOTIC factors affecting communities

living organisms compete for factors such as food, space and breeding partners

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ABIOTIC factors affecting communities p1 2

  1. LIGHT INTENSITY- greater the light, greater the success of the plant growth for consumption of living organisms

  2. TEMPERATURE- greater effect on enzymes that control metabolic reaction. Plants develop rapidly in warmth as their metabolism will be faster

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ABIOTIC factors affecting communities p2 2

  1. MOISTURE LEVEL-lack of water=death for most species + most plants will wilt as water keeps cells turgid and the plant upright

  2. SOIL pH- affects soil availability to certain minerals e.g some plants grow in Acidic soils (pH below 7) and some grow in Alkaline soils (pH above 7)