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7.1 Adaptations, Interdependence and Competition - Coggle Diagram
7.1 Adaptations, Interdependence and Competition
Biotic factors
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Disease - reduces population size by killing organisms. In Hensley populated areas, disease can spread quickly so a large proportion of the population is killed
Competition between species - not enough resources for all, results in death of weaker organisms
Food availability - a large amount of food means that organisms can breed more successfully. Food shortages lead to a high death rate which results in a slow or negative population growth
Adaptations
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Adaptations can be structural, behavioural or functional
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Abiotic factors
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Light intensity, temperature, humidity, soil pH, wind, salinity, CO2/O2 levels, etc
Different plants and animals are adapted to different habitats. If habitat conditions change rapidly, organisms may be unable to adapt to the changes and die as a result
Communities
Competition - there is competition for food, resources, mates and space. Competition promotes evolution and natural selection
Stable when population size remains constant. This happens when organisms and environmental factors are balanced
Interdependence - different species depend on each other e.g. for food, shelter, or to spread seeds
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