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Unformatted text preview: Practice Exam 3 questions Scendesmus grown alone reaches a carrying capacity of 10,000 cells per ml. Euglena grown alone reaches a carrying capacity of 15,000 cells per ml on the same media and light conditions. When they are grown together Scendesmus reaches a density of 12,000 cells per ml and Euglena reaches a density of 16,000 cells per ml. Based on these results what is the relationship between Scendesmus and Euglena ? A. predator, prey B. mutualism C. competition D. disease, host E. indifference Given one has estimated the abundance of each species in a community, species richness (SR) is: A. = 1 - p i 2 B. = -p i lnp i C. the number of species in a community D. proportional to lipid content E. all of the above The logistic model of population growth assumes that the per capita growth rate _____ with increasing population size. A. declines linearly B. declines exponentially C. is constant D. declines parabolically E. increases exponentially A disease that can kill infected individuals is said to be _________. The proportion of infected individuals A disease that can kill infected individuals is said to be _________....
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This note was uploaded on 04/11/2010 for the course BIOS 101 taught by Professor Molumby during the Spring '08 term at Ill. Chicago.
- Spring '08