Biology: Chapter 59 + 69 Biodiversity, Food Webs

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Last updated 3:52 PM on 10/2/26
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27 Terms

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Deforestation
The large-scale removal of trees for non-forestry purposes.
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Pollution
Any harmful addition to the environment.
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Conservation
The wise management of Earth's ecosystems and natural resources to protect against and recover from the harmful effects of human activity.
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Sustainability
The wise management of Earth's natural resources to ensure that all species co-exist into the future.
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Species Diversity Index
A model of the variety and numbers of different species in a given area.
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Producer
An organism that makes its own food by photosynthesis.
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Consumer
An organism that feeds on plants or other animals.
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Decomposer
An organism that feeds on dead organic matter.
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Food Chain
A model to show the sequence in which one organism feeds on another in an ecosystem.
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Herbivore
Animals that only feed on plants.
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Carnivore
Animals that feed on animals.
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Omnivore
Animals that feed on plants and animals.
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Food Web
A model to show the interconnected food chains in an ecosystem.
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Interdependence
The way in which different species in an ecosystem rely on each other for survival.
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Pyramid of Numbers
A model to show the number of individual organisms at each trophic level in a food chain.
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Pyramid of Biomass
A model to show the mass of organisms at each trophic level in a food chain.
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Adaptation
A characteristic of an organism that is specific to a particular environment and gives the best chance of survival.
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Niche
The unique role a species plays in an ecosystem.
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Trophic Level
Each stage in the feeding relationships between organisms in an ecosystem.
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Structural Adaptation
Physical characteristics that give the organism an advantage.
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Behavioural Adaptation
Behaviours that give the organism an advantage.
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Chemical Adaptation
Involves the production of a chemical that gives the organism an advantage.
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Domestic Pollution

Pollution caused by the emissions of private home and cars, and by the incorrect disposal of waste produced in homes.

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Agricultural pollution

Pollution caused by waste produced on farms.

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Industrial pollution

Pollution caused by emissions and waste from factories.

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