What is the key concept for this section? What are four reasons for trying to avoid hastening the extinction of wild species? Describe two economic and two ecological benefits of species diversity....

What is the key concept for this section? What are four reasons for trying to avoid hastening the extinction of wild species? Describe two economic and two ecological benefits of species diversity. Explain how saving other species and the ecosystem services they provide can help us to save our own species and our cultures and economies.