Conservation & biodiversity (Edexcel GCSE Biology): Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
Biodiversity
Biodiversity
Variety of living organisms in an ecosystem
Interdependence in ecosystems
Interdependence in ecosystems
Species depend on each other for food, shelter & environment
Effect of higher biodiversity on stability
Effect of higher biodiversity on stability
More stable - multiple species can perform similar roles
Biological resources from biodiversity
Biological resources from biodiversity
Provides food & medicines for humans
How biodiverse ecosystems affect climate
How biodiverse ecosystems affect climate
Store carbon & regulate climate
Local benefit: biodiversity & tourism
Local benefit: biodiversity & tourism
High biodiversity areas attract tourism & recreation
Examples of ecosystem services
Examples of ecosystem services
Pollination, water purification, soil fertility
Reforestation
Reforestation
Replanting land where forest previously stood
Why forests have high biodiversity
Why forests have high biodiversity
Variety of trees/plants provide food & shelter for animals
Conservation: protecting natural habitat
Conservation: protecting natural habitat
Gives species a place to live & breed
Seed banks purpose
Seed banks purpose
Store & distribute seeds of rare/endangered plants
How conservation protects food supply
How conservation protects food supply
E.g. programmes ensure future generations will have fish
Conservation & food chains
Conservation & food chains
If one species goes extinct, affects all it eats or is eaten by
Breeding programmes purpose
Breeding programmes purpose
Prevent endangered species from extinction
Recycling benefit for biodiversity
Recycling benefit for biodiversity
Reduces land for waste, conserves resources & reduces pollution
