Biodiversity plays an important role in the way ecosystems function and in the many services they provide. Using two credible sources, research the importance of biodiversity's contribution in ecosystems services to humankind. Ecosystem services can be grouped into four broad categories: Provisioning, Regulating, Supporting, Cultural. Based on your research, analyze why declining biodiversity is a threat to ecosystems and the four services that ecosystems provide to humankind. Arial 12 point, double spacing, APA formate, including at least one in-text citation from each source and a reference page. Must be 1-2 pages long, also include a APA title page and reference page.