bio homework due in 12 hours
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Chapter 28
1. The human population is growing exponentially, even though our rate of increase is beginning to slow down. Populations cannot continue to increase forever. Can you explain how the human population has been able to continue to expand over time without negative feedback mechanisms acting as strongly as in other populations?
Chapter 29
2. What would you predict about the accumulation of DDT and other chlorinated hydrocarbons in humans given our position high up on food chains?
3. Look up information on the decline in amphibian populations at Amphibian Web.org (http://amphibiaweb.org/declines/declines.html). Discuss how these declines are related to homeostasis of populations and other concepts from this chapter, such as energy allocation and evolutionary responses to predators.
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