5.1.3软体动物和节肢动物第1课时2021-2022学年生物人教版八年级上册随堂小测
※题型：单选题※知识点：单选题※试题难度：中等<br>下面属于软体动物的是( )<br>①鲍鱼 ②涡虫 ③海蜇 ④扇贝 ⑤章鱼 ⑥蛔虫A.①④⑤ B.②③④ C.①③④ D.③⑤⑥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/883a538afcc644b287c8933d99803eb4/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/16435e42ecef48b990df0e577ac60e26/B9473107D3B246C350CA27F69C137F61.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>石明决是一味珍贵的中药,其主要成分是鲍鱼壳。鲍鱼身体柔软,营养丰富,身体不分节。据此推测鲍鱼属于( )<br>A.节肢动物 B.爬行动物 C.软体动物 D.腔肠动物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/8530a7558fb4415a8fb2b5db20350d30/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/a95529c8d4de42efb2cd84628ec61aca/7BAA52D9C7290EAB6427DB31135F5171.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>河蚌的运动器官是( )<br>A.足 B.斧足 C.鳍 D.四肢<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/2d1c0f2b779a44b085b5025163b8db5d/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/d65c4b1f2182440eae2fbf568ed3fe19/8210290D9912A871369DEF65A3F926EA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>珍珠是人们的装饰品,形成珍珠的结构是珍珠蚌的( )<br>A.鳃 B.外套膜 C.贝壳 D.足<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/682538ac3ddc482ca8ac0f8f31d6cdc4/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/46337b8035ac499d93c64e3083bb62bf/BC4D350E1BE92FCEBE6B4074F25A29B1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下图为常见的河蚌。关于河蚌的描述,错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/31/033981F9F1D65B021A7825B96F5D719D.png"><br>A.受到惊扰时仍能够运动<br>B.外形前端钝圆,后端稍尖<br>C.柔软的身体外有外套膜包裹<br>D.生活在江河湖泊、池沼底部<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/44f5c0306eb846f09093f6475e0e6700/C94C5F8BAE1D3F52340F526AACEA91CE.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/da817ebe3a04414f907633c93dcddd5e/5CDD24A588C52F2A85C4D2CEF9562FFD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列叙述中,乌贼不具有的特点是( )<br>A.身体柔软 B.体表有外套膜<br>C.身体外面有贝壳 D.利用腕足捕食<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/60620a802f534695b0d7402329767b5a/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b727a5cd73bb42fe9cf80947bfc48847/4625A01AC7AB5D22ACC8AC367A30E57B.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>观察<br>缢蛏<br>内部结构示意图,回答问题:<br><img src="https://picture2.zhihuicn.com/testImage/2/2019/9/9/C6B0C49584C79F8E5FCCCE9F0C687C6A.png"><br>1.图中③的结构名称是,是缢蛏的器官。<br>2.图中⑤的结构名称是,它的分泌物能形成内面光滑的珍珠层。<br>3.图中⑥的结构名称是,是缢蛏的器官,当它遇到刺激时,就会将其收回,贝壳就紧紧合在一起。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/001dac9e4cb4477cbabdabc6e3ee89aa/9DE0CC986B829A4AAADC5E8EA81FB3C6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/c7270be42d4a4073bccb4479b544e64f/3C718F4FD25902062985C73F07FAB1EC.png"><br><br>
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