Although the professor in the listening passage explains that the solution is acceptable because not only the striped bass population is vital for menhaden but also the entire ecological system based on it .
Although , the professor in the listening passage explains that the solution is acceptable because not only is the striped bass population vital for Menhaden , but also the entire ecological system based on it . Although the professor in the listening passage explains that the solution is acceptable because not only is the striped bass population vital for menhaden , but also the entire ecological system is based on it . Although the professor in the listening passage explains that the solution is acceptable because not only is the striped bass population vital for menhaden , but the entire ecological system is based on it . Although the professor in the listening passage explains that the solution is acceptable , because not only is the striped bass population vital for menhaden , but also the entire ecological system depends on it .