如图是某草原生态系统中的食物网示意图，请根据图回答问题．
（1）在此生态系统中青蛙和蜘蛛除了捕食关系外，还有______关系．
（2）在草原生态系统的组成中，图中未画出的生态系统的组成成分是______和分解者．
（3）该草原生态系统中，共有______条食物链．
（1）在该生态系统中青蛙捕食蜘蛛属于捕食关系，同时青蛙和蜘蛛都以蝗虫为食，两者之间还属于竞争关系．
（2）草原生态系统是由生物部分和非生物部分组成的．生物部分包括生产者、消费者和分解者．图中未画出的生态系统的组成成分是非生物成分和分解者．
（3）图中共有5条食物链分别是：草→鼠→蛇，草→食草昆虫→青蛙→蛇，草→食草昆虫→食虫鸟，草→食草昆虫→蜘蛛→青蛙→蛇，草→食草昆虫→蜘蛛→食虫鸟．
故答案为：（1）竞争 （2）非生物成分 （3）5
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| One day a woman got into her car and started driving home after work. Just at that time, she saw a 1 car behind her. The driver was a 2 . When she turned left, the yellow car turned left. When she turned 3 , the yellow car turned right, too. When she stopped at the traffic lights, the yellow car stopped 4 her. The woman was 5 , so she drove quickly to 6 . When she arrived, she was very 7 to see that the yellow car stopped behind her again. But she felt 8 because she saw a policeman standing outside the police station. She jumped out of her car at once and 9 to the policeman. She asked the policeman to arrest (逮捕) the man in the yellow car, then the policeman walked to the man. The man didn't run away. He just 10 and said to the woman,"I want to give this purse back to you. I think you dropped it on the street." | |||
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