北师大版八年级下册生物同步练习：7.22.4 动物的主要类群
题型：选择题※难度：一般
<div><div><p>【题目】下列动物中属于环节动物的是（ ）</p><p>A．蛔虫 B．蛲虫 C．涡虫 D．水蛭</p><p> </p></div></div>
<div><p>【答案】D</p><p>【解析】</p><p>试题分析：环节动物的特征为身体由许多彼此相似的环状体节构成，身体分节可以增强运动的灵活性。常见动物有蚯蚓、水蛭、沙蚕。蛔虫、蛲虫属于线形动物；涡虫属于扁形动物。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】下列试图说明蚯蚓与人类的密切关系，其中可能对生产活动造成危害的是（ ）</p><p>A. 能改良土壤并能提高土壤的肥力</p><p>B. 是优良的蛋白质饲料和食品</p><p>C. 可利用它处理有机废物（如垃圾）</p><p>D. 过量的蚯蚓会吞食植物的根系</p><p> </p></div></div>
<div><p>【答案】D</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】我们食用的“蜇皮”主要是海蜇的（ ）</p><p>A. 伞部 B. 口腕部 C. 整个海蜇 D. 伞部的外层细胞</p><p> </p></div></div>
<div><p>【答案】A</p></div>
题型：选择题
※难度：较易
<div><div><p>【题目】身体里有由脊椎骨组成脊柱的动物类群，叫做 （ ）</p><p>A．脊椎动物 B．无脊椎动物</p><p>C．脊柱动物 D．无脊柱动物</p><p> </p></div></div>
<div><p>【答案】 A</p><p>【解析】</p><p>试题分析： 根据动物体内有无脊柱可以把动物分为脊椎动物和无脊椎动物，脊椎动物的体内有脊椎骨构成的脊柱，无脊椎动物的体内没有脊柱。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】在常见的腔肠动物中，营群体生活的是（ ）</p><p>A. 水螅 B. 海蜇 C. 海葵 D. 珊瑚虫</p><p> </p></div></div>
<div><p>【答案】D</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】全世界的哺乳动物大约有（ ）</p><p>A. 40多万种 B. 4万多种 C. 4千多种 D. 4百多种</p><p> </p></div></div>
<div><p>【答案】C</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】保护青蛙的意义在于（ ）</p><p>A. 青蛙肉味鲜美，营养价值高</p><p>B. 青蛙能大量捕食农业害虫</p><p>C. 青蛙体色具斑纹，适于观赏</p><p>D. 青蛙具有很高的科研价值</p><p> </p></div></div>
<div><p>【答案】B</p><p>【解析】试题分析：一只青蛙每天能吃70多只害虫，一年便能吃一万多只害虫，在稻田中放养适量的青蛙，这样不仅可以减轻农作物的病虫害，而且可以避免因喷洒农药所造成的环境污染，青蛙是农业害虫的天敌，对人类益处多多，如果没有青蛙，农作物受害，减少产量，人类生存也会受到影响。</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】下列哪些特点说明家鸽的外形与飞行生活相适应（ ）</p><p>A. 全身被覆羽毛 B. 身体分为头、颈、躯干、尾、四肢</p><p>C. 体型呈流线型 D. 前肢特化成翼，生有几排大型正羽</p><p> </p></div></div>
<div><p>【答案】ACD</p></div>
题型：选择题
※难度：一般
<div><div><p>【题目】“米猪肉”是指（ ）</p><p>A. 含米粒的猪肉 B. 含猪肉绦虫卵的猪肉</p><p>C. 含猪肉绦虫成虫的猪肉 D. 含猪肉绦虫幼虫的猪肉</p><p> </p></div></div>
<div><p>【答案】D</p></div>
题型：综合题
※难度：一般
<div><div><p>【题目】（1）填写下表，比较青蛙和蜥蜴的特点。</p><table cellspacing="0" cellpadding="0" style="width:100%; border:1.5pt solid #000000; border-collapse:collapse"><tr style="height:21.75pt"><td style="width:124.95pt; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3pt 5.03pt 3.38pt 4.65pt; vertical-align:middle"><p>特 征</p></td><td style="width:126.45pt; border-right-style:solid; border-right-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3pt 5.03pt 3.38pt; vertical-align:middle"><p>青 蛙</p></td><td style="width:125.7pt; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3pt 4.65pt 3.38pt 5.03pt; vertical-align:middle"><p>蜥 蜴</p></td></tr><tr style="height:22.5pt"><td style="width:124.95pt; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt 3.38pt 4.65pt; vertical-align:middle"><p>生活环境</p></td><td style="width:126.45pt; border-style:solid; border-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p> </p></td><td style="width:125.7pt; border-top-style:solid; border-top-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 4.65pt 3.38pt 5.03pt; vertical-align:middle"><p> </p></td></tr><tr style="height:22.5pt"><td style="width:124.95pt; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt 3.38pt 4.65pt; vertical-align:middle"><p>皮肤和覆盖物</p></td><td style="width:126.45pt; border-style:solid; border-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p> </p></td><td style="width:125.7pt; border-top-style:solid; border-top-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 4.65pt 3.38pt 5.03pt; vertical-align:middle"><p> </p></td></tr><tr style="height:22.5pt"><td style="width:124.95pt; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt 3.38pt 4.65pt; vertical-align:middle"><p>呼吸器官</p></td><td style="width:126.45pt; border-style:solid; border-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p> </p></td><td style="width:125.7pt; border-top-style:solid; border-top-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 4.65pt 3.38pt 5.03pt; vertical-align:middle"><p> </p></td></tr><tr style="height:22.5pt"><td style="width:124.95pt; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt 3.38pt 4.65pt; vertical-align:middle"><p>体温</p></td><td style="width:126.45pt; border-style:solid; border-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p> </p></td><td style="width:125.7pt; border-top-style:solid; border-top-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 4.65pt 3.38pt 5.03pt; vertical-align:middle"><p> </p></td></tr><tr style="height:19.5pt"><td style="width:124.95pt; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; padding:3.38pt 5.03pt 3pt 4.65pt; vertical-align:middle"><p>生殖发育</p></td><td style="width:126.45pt; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; padding:3.38pt 5.03pt 3pt; vertical-align:middle"><p> </p></td><td style="width:125.7pt; border-top-style:solid; border-top-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; padding:3.38pt 4.65pt 3pt 5.03pt; vertical-align:middle"><p> </p></td></tr></table><p> </p><p>____________</p><p>（2）通过以上青蛙与蜥蜴的对比，你能得出什么结论?</p><p>____________</p><p> </p></div></div>
<div><p>【答案】 水陆两栖 陆地 皮肤裸露</p><p>体表覆盖鳞片 肺、皮肤辅助呼吸</p><p>肺 变温 变温 体外受精、体外发育 体内受精，卵生 1）动物的形态和结构是与其生活环境相适应的。</p><p>2）爬行动物更适应于陆地生活</p><table cellspacing="0" cellpadding="0" style="width:100%; border:0.75pt solid #000000; border-collapse:collapse"><tr style="height:15.75pt"><td style="width:27%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p>特征</p></td><td style="width:39%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt 3.38pt 5.4pt; vertical-align:middle"><p>青蛙</p></td><td style="width:31%; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p>蜥蜴</p></td></tr><tr style="height:15.75pt"><td style="width:27%; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p>生活环境</p></td><td style="width:39%; border-top-style:solid; border-top-width:0.75pt; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt 3.38pt 5.4pt; vertical-align:middle"><p>水陆两栖</p></td><td style="width:31%; border-top-style:solid; border-top-width:0.75pt; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.38pt 5.03pt; vertical-align:middle"><p>陆地</p></td></tr><tr style="height:15.75pt"><td style="width:27%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>皮肤和覆盖物</p></td><td style="width:39%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt 5.4pt; vertical-align:middle"><p>皮肤裸露</p></td><td style="width:31%; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>体表覆盖鳞片</p></td></tr><tr style="height:15.75pt"><td style="width:27%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>呼吸器官</p></td><td style="width:39%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt 5.4pt; vertical-align:middle"><p>肺、皮肤辅助呼吸</p></td><td style="width:31%; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>肺</p></td></tr><tr style="height:15.75pt"><td style="width:27%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>体温</p></td><td style="width:39%; border-right-style:solid; border-right-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt 5.4pt; vertical-align:middle"><p>变温</p></td><td style="width:31%; border-left-style:solid; border-left-width:0.75pt; border-bottom-style:solid; border-bottom-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>变温</p></td></tr><tr style="height:15.75pt"><td style="width:27%; border-right-style:solid; border-right-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>生殖发育</p></td><td style="width:39%; border-right-style:solid; border-right-width:0.75pt; padding:3.75pt 5.03pt 3.38pt 5.4pt; vertical-align:middle"><p>体外受精、体外发育</p></td><td style="width:31%; border-left-style:solid; border-left-width:0.75pt; padding:3.75pt 5.03pt 3.38pt; vertical-align:middle"><p>体内受精，卵生</p></td></tr></table><p> </p></div>
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