Internal anatomy of the earthworm a. The mouth leads to what structure?
b. After the esophagus, food passes through what three structures?
c. Undigested particles are eliminated through the what?
d. What is the purpose of the nephridium?
e. What is the purpose of the seminal vesicles?
f. Where are the seminal receptacles located?

Spencer's blog claims that national parks are the best vacation destinations. which evidence is best for developing his claim? a personal account from a park visitor who describes positive adventures at grand canyon and yellowstone parks an interview with a travel agent who advertises cruises, eco-tours, and whitewater rafting trips a chart that compares the number of national parks in the eastern united states to that in the western states a study that proves adults who take yearly vacations have lower blood pressure than those who do not