1. Explain invasive species. Your explanation should include the following: (a) How invasive species are introduced to new areas
(b) The characteristics of a successful invasive species
(c) The potential impact of an invasive species on an ecosystem and food chains

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2. In a discussion, a student makes the following statement regarding the cause of global warming: “The sun’s rays penetrate the atmosphere through the ozone hole and heat up the atmosphere and the surface, thereby causing global warming.” Is the student correct? Why or why not? In your response, briefly explain both phenomena.

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3. Explain four factors that threaten the biodiversity of the Galapagos Islands.

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