2020-2021学年八年级生物上册人教版同步课时作业5.1.2线形动物和环节动物
※题型：单选题※知识点：单选题※试题难度：中等<br>蛔虫是常见的肠道寄生虫,下列哪项特征与它的寄生生活无关( )<br>A.体表有角质层 B.有口无肛门<br>C.生殖器官发达 D.消化管结构简单<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/68e4b3cd0f3746ef96f563c3642dc15c/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/1e8b2c1828b347acb666c59e4840a259/1585997C7DAD9898B09AB3E440029790.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>下列与预防蛔虫病无关的卫生习惯是( )<br>A.早晚刷牙、洗脸<br>B.不喝生水,饭前便后洗手<br>C.注意饮食卫生,不吃没有洗干净的瓜果、蔬菜<br>D.管理好粪便<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/7a71644a57324f21bd0f628874fd694f/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是最常见的环节动物之一蚯蚓,下列有关叙述错误的是( )<imgA.①是蚯蚓的环带<br>B.B是蚯蚓的前端<br>C.蚯蚓靠湿润的体壁进行呼吸<br>D.蚯蚓的身体由许多相似的②组成<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0c5939d6145449f7995fa4ad8102574e/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列动物中不属于环节动物的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2019/9/9/5B20173F082A1A5064FC96DC94F7ECD9.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2019/9/9/83E25ED8F44806F184BB1235D10FE9EE.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2019/9/9/F48EDCF0E71562E97EC9496E99D67F42.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2019/9/9/A8EAE7C6219507B6EECDDC74D3A296F0.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/10fc92a0fd9544cd96c2c239c551e9a9/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/7372a4e317a94c13b0abfa83422e3768/F11A2C913F2D3BB0DCE24BB7FD8D1E0A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>观察蚯蚓标本时,应区分其前、后、背、腹,标志是( )<br>A.有眼睛的是前端,颜色浅的是背面<br>B.有环带的是前端,颜色深的是背面<br>C.有肛门的是后端,颜色浅的是腹面<br>D.有口的是前端,颜色深的是腹面<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/b5fd5e225eae4effa90952d500f3dcb2/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>常用来作为监测土壤是否受到重金属污染的动物是( )<br>A.蚯蚓 B.鲤鱼 C.燕子 D.蛇<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/b3087afdf17e4b1eadefaa303218e750/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/3deeb48e9f9448189444f47967f52110/AB1FAFCC07139482D244EE1F00A37198.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>身体由许多彼此相似的体节构成,能疏松土壤的动物是( )<br>A.水螅 B.蚯蚓 C.蛔虫 D.涡虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/f4e59cb79d87400ca5545e92ae754953/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br>略<br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>如图是蚯蚓外形图(部分),请据图回答下列问题:<img src="https://picture2.zhihuicn.com/testImage/2/2019/6/21/B7A024D6865B842B34A9B2F358E2843B.png"><br>1.此图标是蚯蚓的端,依据是具有环带。<br>2.蚯蚓在粗糙纸上比在玻璃板上运动的速度。<br>3.填出图中的序号名称:;。<br>4.蚯蚓的呼吸靠来完成,它以土壤中的为食。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/ddf3f6e365f244d1a4fec8c2c1cfc99f/B713A87C35AD6422A9541435D55E6577.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/a9453398d9cb4d9d93ee49003c92c3f0/1BD376BDDA6122128D0D3A6B845F0729.png"><br><br>
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