In which situation might the Federal Reserve sell government securities and raise the discount rate? 3 points when the aggregate supply is too high when the inflation rate is high in a depression in a recession

The graph shows the populations of two species in a particular region over two decades. based on the graph, what can you conclude about the relationship between the two species? a. the two species have a parasitic relationship. b. the two species are mutualistic in nature. c. the two species exhibit commensalism. d. the two species have a prey-predator relationship. e. the two species have a familial relationship.