1) Which of the following is NOT a level of biodiversity?

Species diversity

Individual diversity

Genetic diversity

Ecosystem diversity

2) Which of the following causes of extinction is predicted tobe a significant cause of extinction in the coming century?

habitat loss through deforestation

overharvesting

climate change

introduction of exotic species

Chemical diversity

3) The core threat to global biodiversity is considered tobe:

over-fishing of marine ecosystems

human overpopulation

over-farming of agricultural land

introduction of exotic species