1. HUMAN ACTIVITIES AND BIODIVERSITY How do humans alter the biodiversity of groups of living things?

2. Human Activities that Affect Biodiversity ( Please read pages 422-423) 1.Habitat Destruction – from agriculture, construction, mining, forestry, etc. 2.Introduced Species – intentionally or accidentally. 3.Overexploitation – harvesting of plants or animals beyond what the population can recover. 4.Disruption of Networks – this affects relationships within or between ecosystems. 5.Breeding and Cloning – such as selective breeding of food crop species; this reduces genetic diversity.

3. Analysis Questions 1.In which scenario was genetic diversity altered? How was it altered? In what way(s) did this alteration impact the species in question? 2.Discuss a scenario in which species diversity was altered. 3.Discuss a scenario in which ecosystem diversity was altered. 4.Describe a scenario that resulted in extinction of a species.

4. Revisit The Challenge Address the challenge: “How do humans alter the biodiversity of groups of living things?” Answer with a quality, detail laden essay. Include specific details from both your and two other scenarios.