Solved by a verified expert:These are biology short answer questions. Please the answers don’t have to be too lengthy… short and to the point is best, as long as the question is fully answered.:)1.Discuss how acid rain would affect fish in a freshwater lake and the possible long-term changes in the lake ecosystem and the interactions of species within it.2. A serious eye disease was noticed in the common house finch. After investigation, researchers discovered that the bacterium, Mycoplasma gallisepticum, was found present in the affected birds. Design an investigation and describe how you would determine if the bacterium affected the population size of the house finch. Include in your explanation the data you would collect, what patterns you would look for as you analyzed the data, and the type of relationship that exists between the birds and the bacterium.