Every year there is a Spring Festival in China. Usually it is in January or February. It is the most important festival in China. So before it comes, everyone has to prepare things. They buy pork, beef, chicken, fruits and many other things. And they often make a special kind of food—“dumplings”. It means “come together”. On the day before the festival, parents buy new clothes for their children. Children also buy presents for their parents. On the Spring Festival Eve（除夕）, all the family members come back to their hometown. This is a happy moment. Some sing and dance，some play cards and others get the dinner ready. When they are having dinner, they give each other the best wishes for the coming year. They all have a good time.

请根据所学的生态系统的知识，用箭头把它们之间的营养关系正确表示出来：____．