2021-2022学年八年级上册生物人教版每节一练：5.1.2线形动物和环节动物（基础题）
※题型：单选题※知识点：单选题※试题难度：中等<br>下列动物中,营寄生生活的是( )<br>A.蜗牛 B.蚯蚓 C.沙蚕 D.蛔虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/bf395b80eb1040b7b9736e2c39fce71a/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/32df0c21d81f4f4397fcf601c8bc1475/293ED28BFDFB7AD78E8AAD5B4C02F878.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列动物中,体表有角质层的动物是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/23C6B9045005767E723C3CDDD4D90A46.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/2A9E4D9AE80A62F24108543157E269E6.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/5B9DC22B05FDF7E8940D06670FC2A422.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/72D109EA0977F2F008ADCF44E89FEAB3.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/8990d9e04bb64254a550c55f69f6dde9/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/a773623d9f8642378c39e91563f1cafc/3E6C5240C4047CFEDBB0E4189172BD43.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>线形动物和环节动物的共同特征是( )<br>A.身体细长<br>B.有口无肛门<br>C.身体由许多相似的体节组成<br>D.都可以在人体内营寄生生活<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/16b348adceee492aa53c4f3ab7003e2d/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/584b8d6132ac4bc9b39c43a6ead686e1/9466E95DE4C3F071D565804FF30E1860.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>蛭俗称蚂蟥,它的唾液中有防止血液凝固的蛭素,可以用来生产抗血栓药物。蛭属于( )<br>A.线形动物 B.环节动物 C.腔肠动物 D.扁形动物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5c271f85bfc44eb88f3f42e9aee2acdc/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8cc5b30a7d4b46249cc25dc49e449cc8/25CA346969EBD3656DBD4A10A4E22751.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>小明喜欢养鱼,周六一大早他去河里用捕虫网捕捞鱼虫,今天他捞到了好几条从来没见过的鱼虫,他仔细观察了一下,这种鱼虫身体分节,用放大镜观察腹面,发现有刚毛。根据所学过的生物学知识,他判断这种鱼虫是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/A603A5A2D97AF5CC45034F60B5C32B40.png"><br>A.扁形动物 B.线形动物 C.环节动物 D.节肢动物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/ac1cbdbc44c541d4bc27fa028abee348/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/8bf8dbd5445a441f860d074b388ae6e5/2C159676B66357167333A2C9B516F076.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>蚯蚓是人类的好朋友,它不但可以疏松土壤,还可以( )<br>A.作为蛋白质饲料 B.处理垃圾<br>C.增加土壤的肥力 D.以上三项都对<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/0cc7962dc4364c73a2b56e2535f52301/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/0a59a699f47544d09b7d9a1774a6e874/FB497B4C36A78D0BA2C606607083CA56.png"><br><br>※题型：填空题※知识点：填空题※试题难度：较易<br>环节动物身体由构成,靠或辅助运动。蚯蚓是环节动物的代表,其通过进行呼吸。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/77B1B40B77DB4643CA26E3F7A1DF7016.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/5E64A47D88BCE603D5D8EF864A8F4173.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>如图为三种无脊椎动物的形态结构示意图(未按比例)。<img src="https://picture1.zhihuicn.com/2/F2B30EA472ED993F480883F32A20C14E.png"><br>style="VERTICAL-ALIGN:middle">1.请写出三种动物所属的无脊椎动物类群:A属于;B属于;C属于。<br>2.从体形看,A与B、C不同,身体呈对称。<br>3.从结构看,C的消化器官比A、B复杂,表现在。<br>4.从生活方式看,与其它两种动物不同,营生活。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/09D0746CE8A4911AAB94E727A2FF6EA8.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/FC6E0BAFA9C7A4405679376611A40BB6.png"><br><br>
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