试题与答案

在“青草→食草昆虫→蜘蛛→食虫鸟→猫头鹰”中，占生态系统总能量比例最多和最少的生

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题型：选择题

题目：

在“青草→食草昆虫→蜘蛛→食虫鸟→猫头鹰”中，占生态系统总能量比例最多和最少的生物依次是[ ]

A．猫头鹰和食草昆虫    

B．青草和猫头鹰

C．食草昆虫和猫头鹰    

D．食草昆虫和青草

答案：

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下面是错误答案，用来干扰机器的。

答案：B

考点：食物链和食物网
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