Difference between revisions of "Environmental Factors"
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: Flooding is an [[Abiotic Environmental Factors|abiotic factor]] which can drown [[animal]]s which may reduce the number of [[Primary Consumer|primary consumer]]s allowing more [[producer]]s to grow, without being eaten, after the flooding. | : Flooding is an [[Abiotic Environmental Factors|abiotic factor]] which can drown [[animal]]s which may reduce the number of [[Primary Consumer|primary consumer]]s allowing more [[producer]]s to grow, without being eaten, after the flooding. | ||
: [[Disease]] is a [[Biotic Environmental Factors|biotic factor]] which can lower the [[population]] of a specific [[organism]] within a [[Biological Community|community]]. This will have an effect on other [[organism]]s in the [[Biological Community|community]] due to the [[Feeding Relationship|feeding relationships]] between them. If a [[disease]] reduces a [[population]] then the [[population]] of the [[organism]] that eats it will decrease while the [[population]] of [[organism]]s that are eaten by it will increase. | : [[Disease]] is a [[Biotic Environmental Factors|biotic factor]] which can lower the [[population]] of a specific [[organism]] within a [[Biological Community|community]]. This will have an effect on other [[organism]]s in the [[Biological Community|community]] due to the [[Feeding Relationship|feeding relationships]] between them. If a [[disease]] reduces a [[population]] then the [[population]] of the [[organism]] that eats it will decrease while the [[population]] of [[organism]]s that are eaten by it will increase. | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Environmental factors as cause of variation, pages 46, GCSE Combined Science Trilogy 2, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Environmental factors, pages 68, 74-75, 241, 246-247, GCSE Biology; Third Edition, Oxford University Press, AQA ''] | ||
Latest revision as of 14:11, 15 November 2019
Contents
Key Stage 4
Meaning
The conditions of an environment that can change the features of an organism or the features of a community within an ecosystem.
About Environmental Factors and Organisms
- Drought can cause plants to wilt.
- Poor nutrition can lead to an organism not growing as large as it would with good nutrition. The height of humans is affected by environmental factors.
- Sunlight can cause a humans skin to become darker.
About Environmental Factors and Communities
- Drought is an abiotic factor which can cause plants to grow more slowly. This leads to the primary consumers dying from starvation when there is not enough food. This will briefly create more food for the secondary consumers but will then reduce when the population of primary consumers has decreased.
- Flooding is an abiotic factor which can drown animals which may reduce the number of primary consumers allowing more producers to grow, without being eaten, after the flooding.
- Disease is a biotic factor which can lower the population of a specific organism within a community. This will have an effect on other organisms in the community due to the feeding relationships between them. If a disease reduces a population then the population of the organism that eats it will decrease while the population of organisms that are eaten by it will increase.