Should a period follow a dependent clause when the dependent clause comes first?

Compare: what are the similarities and differences between "artificial flavors" and "natural flavors"? why does schlosser explain these two terms in such detail?

Alittle later than his thisbe had, and he could see what surely were the tracks of a wild beast left clearly on deep dust. his face grew ashen. and when he had found the bloodstained shawl, he cried: "now this same night will see two lovers lose their lives: she was the one more worthy of long life: it's i who bear the guilt for this. which statement best describes how the order of events creates tension?

Am nevoie de rezumatul cartii auslander de paul dowswell ! va rog . cel mai scurt rezumat posibil! dau coronita!