如图表示某生态系统各生物之间形成的联系，请据图回答下列问题：

（1）作为一个生态系统，除图中已有的成分外，还应包括______．

（2）在此生态系统中，细菌被称为______．

（3）此生态系统的生产者是______．

（4）此生态系统的消费者是______．

（5）写出此生态系统中以捕食关系形成的食物链：______．

The reason _____ the president of Czech is widely discussed recently is _______ he was seen “to steal” a pen at a press conference in Chile.

A．why, because

B．that, that

C．why, that

D．why, why