What percent of all species are estimated to become extinct in the next 50 years? 

___________________ is the variety of life on Earth. Described as the number of species present in an area. 

Put these classifications in order from least to most serious in terms of conservation. 

Biodiversity is highest at the poles and declines towards the equator.  

Landscape diversity incorporates a number of interacting ecosystems within one area. 

_________________     _________________ , such as the rain forest, contain unusually large concentrations of species. 

There are up to 50 million species living on Earth today, most of which have not yet been discovered. 

Populations that are small tend to have ______________ biodiversity. 

Diseases are less likely to affect populations with _____________ biodiversity. 

Decreasing the population by removing members will most likely _______________ biodiversity. 

Organize the following based on the category of biodiversity value. 

_____________________________ is the cause of 85% of endangered species. 

species the influence the viability of a community, their removal leads effects the entire ecosystem. 

The ________________ effect describes how the edges of an ecosystem are less diverse than the center. The smaller an ecosystem patch, the more 'edge' is produced. 

_______________________ seeks scientific ways to return ecosystems to their former state. 

Which of the following is an example of a biodiversity hotspot?