1. Summarize the process of natural selection that leads to the vast diversity that is found on the earth. (10 pts.)
2. Would you expect simple food chains to be more stable or less stable than complex networks of food webs. Explain your choice. (10 pts.)
3. What factors determine which biomes are found where on the planet. (10 pts.)
4. Briefly describe 3 ecosystem services that you think are the most essential for human persistence on this planet. If they are at risk, what can be done to protect them?
5. How should we determine priorities for species and habitat conservation if it is not possible to protect all species and habitats?

*Note: I do want an essay these are different questions, they should be answered separately.

Thanks

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