Problem 2
Use the second law of thermodynamics (Concept 2-3B, p. 35) to help explain why predators are generally less abundant than their prey.
Problem 3
Explain why most species with a high capacity for population growth (such as bacteria, flies, and cockroaches) tend to have small individuals, while those with a low capacity for population growth (such as humans, elephants, and whales) tend to have large individuals.
Problem 4
Which reproductive strategy do most insect pest species and harmful bacteria use? Why does this make it difficult for us to control their populations?
Problem 5
List three factors that have limited human population growth in the past that we have overcome. Describe how we overcame each of these factors. List two factors that may limit human population growth in the future.
Problem 7
How would you reply to someone who argues that we should not worry about our effects on natural systems because natural succession will heal the wounds of human activities and restore the balance of nature?
Problem 8
How would you reply to someone who contends that efforts to preserve natural systems are not worthwhile because nature is largely unpredictable?
Problem 10
List two questions that you would like to have answered as a result of reading this chapter.
