读2012年我国部分地区户籍人口与常住人口统计图，回答下列各题。

如图表示生态系统中生物之间的相互关系，请你根据图回答相关问题．

（1）图中的绿色植物利用____ ，制造____ ，不仅养活了自己，还养活了虫和鸟，所以它是生态系统中的____ ．

（2）图中的虫和鸟是生态系统中的____ ，它们不仅能帮助植物传粉和传播种子，而且直接或间接地以____ 为食，促进生物圈的物质循环．

（3）图中的细菌和真菌是生态系统中的____ ，①②③过程表示____ ，通过④可以看出____ 

（4）请你用一句话概括图示生物的关系：____ ．

注意：1.每处错误及其修改均仅限一词2.只允许修改10处，多者（从第11处起）不计分。

    I am interested at swimming very much. At the first, I went swimming just to keep health. Now my dream was to swim for my country in the Olympics. Though practicing in the pool is very bored, I still work very hard in order to realize my dream. Because my hard work, I have already come first in much important competitions. In the competitions, I've made lot of friends and we're very close. It's much easier to have friends which are swimmers because they also have to get up early to practice like you and they understand this kind of life.