The number of species that exist on Earth is not known; there are many species yet to be discovered, and many may become extinct before ever being discovered. Extinction of species is a natural process but the number of species currently going extinct is significantly higher than than natural background rate and this is a consequence of human activities.
|Factors that reduce biodiversity
|The IUCN red list
|Endangered species case studies
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“The wildlife trade is a threat to biodiversity. Explain why eliminating the trade of endangered species is a challenge and describe solutions to the problem.” [9 marks]
The essay should marked using the Paper 2, Section B essay markbands.