Ecology 203. Exam II. Name _________________________
Short answer. Answer FOUR of the following for 10 points each. Place answers in your bluebook. Make sure you identify which questions you are answering. Please consider the amount of time; your answers should be short but complete. If the question seems too easy your answer will probably be incomplete.
Define FOUR of these in your blue book. (5 points each)
Discussing and interpreting graphs. Choose TWO questions. 15 points each.
True/False. Answer FIVE of the six. (2 points each)
____ Successful invaders disrupt ecological processes.
____ Plants, because they are stationary, are not able to defend themselves against herbivore attack.
____ Mycorrhizae were seen in the book and lecture to reduce the number of inflorescences when the soil was fertilized for several years.
____ With the advent of modern medicine only about 1 million people die each year of infectious diseases.
____ Diseases begin their interaction as parasites and eventually evolve to a state of benign coexistence, occasionally approaching a mutualistic relationship with their hosts.
____ Predators usually follow a Type I function response, eating prey in proportion to the prey’s abundance.