Loss of Biodiversity (Grade 11 NSC Matric Life Sciences): Flashcards
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Practise the cards
10 cards from this deck
Biodiversity
Biodiversity
Variety of all living organisms on Earth
Biggest single threat to biodiversity
Biggest single threat to biodiversity
Habitat destruction
Extinction
Extinction
When a species has completely died out
Three main human threats to biodiversity
Three main human threats to biodiversity
Habitat destruction, poaching, alien species invasions
Poaching
Poaching
Illegal hunting/collecting of species for food or profit
Rhino horn composition
Rhino horn composition
Keratin (same as human hair, nails, claws)
Rhinos poached daily in South Africa
Rhinos poached daily in South Africa
3 rhinos per day on average
Sustainable use
Sustainable use
Managing resources so future generations can still use them
Alien plants
Alien plants
Non-native species that outcompete indigenous vegetation
Three methods to control alien plants
Three methods to control alien plants
Mechanical, chemical, biological control