Unit 1: Adaptions to Biotic Factors
- Created by: rosieevie
- Created on: 02-05-14 21:10
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- Adaptation to Biotic Factors
- Feeding
- Some organisms eat a wide variety of foods to increase survival
- Some have specific feeding requirements in captivity
- Parrots have strong beaks to open seeds and fruit so must have suitable plants
- Woodpeckers find larvae from rotting trees so much have rotting wood
- Avoiding Predators
- Some organisms have defence mechanisms e.g. toxins, thorns and bad tastes
- Animals may use camouflage
- Tree-living animals may have more protection
- Symbiotic Nutrition
- Cellulose-digesting bacteria digest cellulose in animals intestines
- Algae in coral polyps are provided with a safe habitat and nutrients and supply polyps with carbohydrates
- Pollination
- Wind pollution is unreliable unless plants are in dense groups
- Grasses in grassland
- Some plants attract animals that transfer pollen
- Wind pollution is unreliable unless plants are in dense groups
- Seed dispersal
- Wind dispersal only works well for small seeds
- Plants with large seeds attract animals that carry away and drop seeds
- Disease
- Diseases naturally control populations
- Weaker individuals are killed to benefit the whole population
- Nutrient Supply
- Nutrients from dead organic matter released by detrivores
- Plants utilise nutrients and ensure future food supply for detrivores
- Feeding
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