2020-2021学年八年级生物人教版寒假提前学（2）昆虫的生殖和发育
※题型：单选题※知识点：单选题※试题难度：中等<br>我国以“缫丝养蚕”著称于世。家蚕吐丝的阶段是( )<br>A.(受精)卵 B.幼虫 C.蛹 D.成虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2018/10848ae1a8354ff3ab5bf027b2c1e099/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2018/c66ead52bff4433aa56d8a3763abc6e0/1DC55FAC5D3541691FD6AA266593029D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>蚊子的发育过程经历了( )<br>A.受精卵→蛹→幼虫→成虫四个时期<br>B.卵→蛹→成虫三个时期<br>C.受精卵→幼虫→蛹→成虫四个时期<br>D.卵→幼虫→成虫三个时期<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2016/2322a00b4c974da0bb7cf047da1b192a/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2016/f25ab76c6b9746fa9a732cb0996fc159/8C2150FE4E017B7A6C0F91D31B48B340.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列生物的个体发育过程不属于变态发育的是( )<br>A.蝌蚪发育成青蛙 B.毛毛虫变成蝴蝶<br>C.蛆发育成苍蝇 D.小鸡变成大公鸡<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7054be99135d43f5ab089897cd447986/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/dcb5236a174b452c9db372c248b0ec86/DDDF1E7EF2387C529F1F75F3FE0A5CBE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列昆虫的发育过程与蝴蝶发育过程不同的是( )<br>A.家蚕 B.蟋蟀 C.果蝇 D.菜粉蝶<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/8c2918aa82bf44a1b0fdfa5e07a47163/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/7187da8c95474ba5bb74d0c5d92dfda7/AC6E69780038B7F3070F14C4D9852C61.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>昆虫的变态发育<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/11/20/A3DF77B8980B3F130655F5FE253F05A7.png"><br>1.家蚕的发育过程:,其幼虫和成虫在形态结构和生活习性上明显不同,属于发育,如蜜蜂、蝇、蚊、菜粉蝶等。<br>2.蝗虫的发育过程:,其若虫和成虫在形态结构和生活习性上相似,属于发育,如蟋蚌、蝉、蜻蜓等。<br>3.蝗虫属于无脊椎动物,外骨骼不会随着身体的生长而生长,故会出现现象。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/540de224ee2d41e0951be15873c7ff86/AA8DEC4274155E468992E2DA73E56249.png"><br>解析<br>略<br>
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