Question 7 0.5 pts What is not a component affecting of the harvest level in the logistic growth model. O catchability Effort O tides of the sea resource level Question 8 0.5 pts Provided is the Excel file Exampleprofit(4).xIsx for the Tuna example of Chapter 7 (Figure 7.4). What is the number of fishing boats when the profits is zero and we halve the intrinsic growth rate r due to pollution of the oceans. Question 9 0.5 pts Given is the internal equilibrium of the predator-prey model as provided in equation 7.30. The value of the prey population in the internal equilibrium goes up is the growth rate r increases. O True O False