景观式人工生态湿地兼具观赏与污水处理功能．图甲表示人工湿地部分成分之间的关系，图乙表示图甲中某好氧细菌的种群数量变化曲线，请回答：

（1）图甲中的细菌属于生态系统的____ （成分），藻类中的碳元素以____ 形式传递给细菌．

（2）图乙中与K值对应的点是____ ，若浮游藻类过度繁殖会导致K值____ ．bc段种群的出生率____ （＞、一、＜）死亡率．

（3）对人工湿地中的植物进行合理配置，可以提高景观的观赏效果，这体现了生物多样性的____价值，而人为的控制改变了群落演替的____ 

（4）人工湿地拥有较多的生物种类和数量，提高了生态系统的____能力．利用生态系统处理污水，可实现物质的循环利用，提高____ ．

阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

       Suppose you broke a cup or a bowl by accident, how would you deal with the brokenpieces? One day, Alice was washing ____(dish)．Suddenlyshe broke a beautiful plate ____(care)．Onhearing the sound, her father ran out of the study at once to see ____ his daughterwas hurt. ____ his relief, she was fine, so the father comforted her and toldher just to throw the broken pieces directly into the dustbin.

However,Alice said nothing.She picked up the pieces on the floor one by one.She evenlooked everywhere to make sure there were no pieces ____(leave)．Then Alice asked her father for someold newspapers and ____ plastic bag.

           The father felt confused.He wondered what she was going to do.After Alice____(wrap) the broken pieces with newspapers, she put ____(they) into theplastic bag, together with a card ____(say) “ Danger! Broken plate！” Finally, she placed the plastic baginto the dustbin.Not until then did the father realize how ____(consider) hisdaughter was.He learned a lesson from her!

血液流经某些器官时，血浆中的代谢废物减少了。这些器官是（  ）。