试题与答案

下图是某生态系统食物网简图，请根据图回答问题： (1)这个生态系统中的能量来源于

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题型：读图填空题

题目：

下图是某生态系统食物网简图，请根据图回答问题：

(1)这个生态系统中的能量来源于___________。

(2)该生态系统的生物成分除了图中的生物外，还应包括细菌和真菌，它们属于____________。

(3)图中有________条食物链，请写出其中最短的一条：______________。

(4)若人们大量捕捉鸟类和青蛙，则该生态系统最初发生的变化是蜘蛛和食草昆虫的数量增加，这可能导致_____________被破坏。

答案：

(1)太阳能（或太阳）

(2)分解者

(3)5   草→鼠→蛇 （或草→食草昆虫→食虫鸟）

(4)生态平衡

考点：生态系统的自动调节能力生态系统的概念和组成食物链和食物网
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right away to look after you. When you are growing up, she feels   3  . When you are   4   to go to school,
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much money   9   your school things. When you do  10  in the exam, you will see the happiest smile on
her face. We should remember Mother's Love forever (永远).
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(     )4. A. old enough
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(     )8. A. angry      
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D. likes          
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