When the predator population is above the prey isocline, the prey population is
a. increasing
b. decreasing
c. neither increasing nor decreasing
b.
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Examine this electron micrograph of a chloroplast.
a. Identify the stack of membranes labeled A. b. Identify the region labeled B. c. Would the production of organic compounds during the light-independent reactions occur in region b or on the membranes labeled a? d. Would you expect the plant in which this structure was found to have been illuminated with strong light immediately before it was prepared for electron microscopy? Why or why not?
Which of the following are functions of decomposer fungi? Check all that apply.
_____ breakdown of leaf litter _____ breakdown of wood _____ breakdown of dead animals _____ recycling of essential nutrients _____ breakdown of pathogenic bacteria
Marsh plants are important in all of the following except:
a. trapping sediments. b. serving as a refuge for animals. c. being directly consumed food. d. stabilizing sediments.
Complete reproductive isolation is evidence that what has occurred?
a. extinction b. speciation c. polyploidy d. hybridization e. gene flow