上图显示鸟产下卵后的情况。母鸟这么做的目的是什么?
五年级科学:卵生动物如何保护卵

Quiz
•
Science
•
3rd Grade
•
Medium

lai xuan
Used 95+ times
FREE Resource
15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为了避开敌人
为了确保物种生存
为了使幼儿快速长大
为了避免幼儿从树上掉下来
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示苍蝇产卵的情況。 为什么苍蝇要产下大量的卵?
以让天敌不敢靠近卵
以让动物容易照顾卵
以减短卵期化成幼儿所需的时间
以增加卵成功孵化成幼儿的机会
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪种动物会孵卵?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示蚱蜢产卵的方式。为什么蚱蜢会这么做?
卵在泥土里才能孵化
为了防止雨水把卵冲散
缩短卵发育成幼儿的时间
防止卵被天敌轻易发现而吃掉
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么蚊子一次要产下那么多卵?
以免卵被水冲走
为了使卵保持温暖
以免卵被天敌吞食
增加卵成功孵化成幼儿的机会
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