admins 发表于 2021-8-18 22:33:56

湖北省宜昌市东部2019-2020学年八年级上学期期中调研考试生物试卷

※题型:单选题※知识点:单选题※试题难度:容易<br>扁形动物和腔肠动物的共同特征是(&nbsp;&nbsp;)<br>A.有口无肛门&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.两侧对称&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.背腹扁平&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.辐射对称<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/02f63162990b486eab943512cc9bede6/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/9d64615fca0e4bf188eb3e0730fa2411/E3EC565822A2E43A828870C6454DA027.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列属于线形动物的是(&nbsp;&nbsp;)<br>A.蛔虫&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.蚯蚓&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.蛭&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.沙蚕<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bcd23cf11fc74a1fa6b81fb6309b52cf/DA50F910BECBBBA4AAB35D7A1AB24524.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>下列关于动物生活环境及获取食物方式的叙述中,正确的是(&nbsp;&nbsp;)<br>A.腔肠动物生活在水中,利用刺细胞帮助捕获猎物<br>B.寄生虫终生生活在寄主体表或体内,靠获取寄主体内的养料生存<br>C.软体动物生活在水中,靠入水管、出水管获取水中的食物颗粒<br>D.节肢动物生活在陆地上,利用口器获取食物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/540cdd9da686488fac5ea0e13707d4ef/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0ee358a3b257478a8e9203ac9e065431/4F72D3B7C7C730B2559AE523417B934D.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>在生长有较多藻类的池塘中,常常看到鱼在黎明时浮头甚至跳出水面,而太阳出来以后,鱼停止了浮头,其原因是(&nbsp;&nbsp;)<br>A.黎明时水温较低&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.水中缺少氧气<br>C.有利于食物的摄取&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.减少水的压力<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/b2529c4dd15a4cb3bc0e57487cc71dee/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/e7dd3991a5474411afdd0108ffefa4ac/A5F174C2D71E5D997EEB63862D3A321C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下面哪一项是鸟类所特有的特征(&nbsp;&nbsp;)<br>A.用肺呼吸并用气囊辅助呼吸&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.体温恒定<br>C.通过产卵繁殖后代&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.善于飞行<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/398e3bf4625f434a9a49f854f061bf0e/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f598fe1e008647aa8f4641ab22f0c31a/A920C0B953C3A757DC67DE02F63A52F6.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下面关于胎生、哺乳的叙述,错误的是(&nbsp;&nbsp;)<br>A.绝大多数哺乳动物以胎生的方式繁殖后代<br>B.哺乳为幼仔成长提供优越的营养条件<br>C.胎生、哺乳大大降低了幼仔的死亡率<br>D.胎生提高了哺乳动物的产仔率<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/62fb7e83c1f9439fa8726e2fbc9da181/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2412f63b828c4fbc8bd8f9bb2af2bb4f/58F0BE109DBF58952C93FBCF9D4B52C1.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>骨骼肌与骨的连结示意图中,正确的是(&nbsp;&nbsp;)<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/15/BF214A34BD36239AB8A82F701F8A0D90.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/15/8E0CA0BC0C514D397751CC4AC44617E7.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/15/A69CCF737C6C748F4C048288DF20EE4F.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/15/2A9013CDE09F9054615D08A4246DA40A.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2ef97d880a17407aa402d32015e88812/4EF59C4461E28F3B3B09551EB8B9AC3F.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>下列四种行为中,从获取的途径来看,哪一项行为与其它三项不同(&nbsp;&nbsp;)<br>A.蜘蛛结网&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.刚出生的婴儿就会吃奶<br>C.美国红雀喂鱼&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.蚯蚓走T型迷宫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5414e291539f492a8844c1eecef12935/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/cd46576cc42e4e788e77af0255f6d70c/4D94CC7CB82A34E2B1184A2BFD6681B6.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>关于动物的行为,下列说法正确的是(&nbsp;&nbsp;)<br>A.具有社会行为的动物群体中,往往是年长者为首领<br>B.动物的学习行为一旦形成,就不会改变<br>C.动物的学习行为越复杂,适应环境的能力越强<br>D.先天性行为和学习行为是两种互不相关的行为类型<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/aa2a2fa40d8b4febaa6526413bc8b4aa/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7fb2674a2c084e648ea7ca6ffe2e88b0/461845F2C6AD0458B31E306D022DB195.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列哪种环境中,霉菌最容易生长(&nbsp;&nbsp;&nbsp;)<br>A.干燥的皮鞋上&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.煮沸但密封的牛肉汁<br>C.潮湿的粮食堆&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.潮湿的沙土地<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2015/843587f7e30b4b5ca012d3f2abd180b1/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2015/c0609c6cc0c4488c8520e47e94acc2ff/DDF1D69CD47396B7205488DD83364BDB.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>细菌的下列特点,与它们的广泛分布无关的是(&nbsp;&nbsp;)<br>A.个体十分微小&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.芽孢抵抗能力较强<br>C.分裂速度快&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.没有叶绿体<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a41672ece44c43cbaf9bbf182d4c6d56/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e16589dca8db4278a3c4366d1997c7d1/EE0C626EC8A973E426ED9418DD2F104C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>大雨过后,蚯蚓往往会钻出土面来,原因是(&nbsp;&nbsp;)<br>A.到土面上来寻找食物<br>B.到土面上来寻找水源<br>C.土壤里空气不足,出来呼吸<br>D.土壤里太黑,看不见<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/667f5113c97f4af0bd4858b441a7aae8/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/33bd264b81d249429c91034237e064b3/4B11CCC7920DC465AFB1B2597A58C0BC.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>家兔具有的牙齿是(&nbsp;&nbsp;)<br>A.门齿与犬齿&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.犬齿和臼齿<br>C.门齿和臼齿&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.门齿、犬齿和臼齿<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/04c7b127e6cd46d197a19dbff6fd5fea/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/da10b7c4a72246d9ad102e2d03e3fcd7/5AD53BB4B6CBD0F7CEEC85C138F7A2DF.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列哪项不是家鸽与飞行生活相适应的特点(&nbsp;&nbsp;)<br>A.体形呈流线型<br>B.前肢变成翼并生有几排大型正羽<br>C.胸肌发达<br>D.用肺呼吸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/67b920bc9bd441b2831f78ec0d235aec/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d46948d00f6b4ffb9defdcc2c6290192/D661973CDE3F7FDCBEB26ACB47A0B8A0.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列一系列动物行为中,哪一组行为全为先天性行为(&nbsp;&nbsp;)<br>①蜘蛛结网②晨鸡报晓&nbsp;③猫抓老鼠④蜜蜂舞蹈&nbsp;⑤婴儿吃奶&nbsp;⑥老马识途A.①②③⑥&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.①②④⑤&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.①④⑤⑥&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.①②④⑥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5c75192c94ca49e6abab3c0d92e4384e/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/934f3c9616e44802b12aa63764d7649f/B89FD09D9F46C43D2333ADAD4ACCEEF0.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>狗无论走多远,都能顺利地返回家,令狗返家的信息来自(&nbsp;&nbsp;)<br>A.沿路的风光&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.沿路的花香<br>C.主人的呼吸&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.沿路狗的气味<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5449c9b281184ba4a358e18fca842dea/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/909bfadeeab24da9ae9c57ff21138865/BE4AB3B725ECC51874AFD6B4DCD03925.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列不属于动物的信息交流方式的有(&nbsp;&nbsp;)<br>A.蜜蜂舞蹈动作&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.孔雀开屏<br>C.乌贼受威胁释放墨汁&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.人类的表情<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/ca1f7fa37b314fa4a8a7eb6f7cad85cf/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/5594a138759c4dd4a19902adf92b15c5/9E2C114932D1660A8FDE539DAA9F5C2D.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列有关爬行动物的叙述中,不正确的是(&nbsp;&nbsp;)<br>A.大多体表覆盖着鳞片或甲<br>B.卵表面具有坚硬的卵壳<br>C.真正的陆生脊椎动物<br>D.生殖和发育都离不开水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4e4cee0bbadc46c0b9a58a327d1be5cb/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/944fe396659f46a39d9e2612f46bc80d/4CEC42FFDA42C4BA48C431ADB0C30A61.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>夏天,潮湿的衣物和皮鞋常常发霉长毛,说明这些霉菌的生存的基本条件是(&nbsp;&nbsp;)<br>①适宜的温度②充足空气③有机物④水分A.①②③&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.①②④&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.①③④&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.②③④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/38185b87d0ac4251bd75f4bce0d12730/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/25e76f308df9400e9928543902e997ac/F1C03A5E2BA7A19A5A9FE7BBAF6FE006.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>运动不仅靠运动系统来完成,控制和调节还需要(&nbsp;&nbsp;)<br>A.消化系统&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.神经系统&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.循环系统&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.呼吸系统<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/47e75bdc6ea04ce2bf5bd40c51df497f/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/80855ab440b947c899e7be71f7577b6b/845224185CF12465A3435622D1B32E99.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>蝙蝠善于飞翔,在分类学上却属于哺乳类的主要原因是(&nbsp;&nbsp;)<br>A.身体内有脊柱&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.胎生、哺乳<br>C.体温恒定&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.用肺呼吸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/68ba2340e655481ab94b2327c1ef51d2/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ab4d1c938ad949869f2b2dd495f26ee8/E613D37664A228E9A1413C9A50160195.png"><br><br>※题型:填空题※知识点:填空题※试题难度:中等<br>呼吸是生物的基本特征之一。各种动物依赖各自不同的结构从外界获取氧气,与生活环境相适应。例如,鱼生活在水中靠_____呼吸,青蛙可在陆地上生活,用_____呼吸,用皮肤辅助呼吸。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0f8ad04832994e5a8056362497d70467/83F7502063FA0F8751B0242211F83D25.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c9bb5fa4fa1b4918bfc9c0ff3e9e5f87/A18E7DBD80D2E0E50B02F1B1FB18F5C7.png"><br><br>※题型:填空题※知识点:填空题※试题难度:中等<br>制作馒头时,人们常将面粉、水与一种单细胞真菌和成面团,在适宜的温度下放置一段时间,面团会逐渐膨大、松软。此过程涉及的真菌和生物技术分别是______、______。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/30b7765de68f47cf90da002e3e914b70/A69696DB8A3D8D7922650D26ECF51065.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/27ce52d1915f463facc0cadcbc853579/F5B695D153AA233995FEB9C0873D6487.png"><br><br>※题型:填空题※知识点:填空题※试题难度:中等<br>具有社会行为的动物,群体内部成员往往形成一定的______,并有明确的______。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4bad441dde6e4abc87b4068759925291/8F08425B7A028CAEEE9D6860911CF989.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a53c7b12cd1e485abb54e1d91f8eff7c/92E48E90B288A90E1D34A95A3AD42FDE.png"><br><br>※题型:填空题※知识点:填空题※试题难度:中等<br>宜昌地区曾是血吸虫的重灾疫区,它主要寄生在人和动物体内,严重危害人体健康。血吸虫和它的中间宿主分别属于______动物和______动物。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d7f061433c3d48529bf99ea9ce7b665f/CCB4942893BE08B0EC50D3E32373AEBE.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/fa5ec59f2ebd4b73948d38792a38e3e1/2FC8791AE7CA93FBF351EF6D83630C62.png"><br><br>※题型:填空题※知识点:填空题※试题难度:中等<br>根据动物体内有无脊柱,动物可分为_____动物和_____动物。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4a4588d80ca74e5897e15b4a35561610/049917F8A780809B5F3B37263615C486.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8ca6c8e4db03475584d1c1de75618730/ECF0EAE4BA34DEDD3E152D421A899749.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>生物多样性是珍贵的自然遗产,是人类生存和发展的基本条件之一。<img <br>1.中华鲟是一种大型的溯河洄游性_____类,是我国特有的古老珍稀动物,它用_____呼吸。<br>2.2014年8月,宜昌至上海江段未发现野生中华鲟幼鱼踪迹,这令科研人员的心情沉重。如不及时加强保护,野生中华鲟甚至是很多动物将面临灭绝危险。上世纪80年代以来的水电工程、航运、捕捞、污染等人为因素,被指共同造成了自然界的危机。那么,在生物圈中,动物具有哪些重要作用呢?3.鸟的翼和蜻蜓的翅,就适于飞行而言,它们的共同特点是什么?<br>4.生物对环境的适应是普遍存在的。鱼所以能够在水中生活,至关重要的两个特点是什么?<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/dd5f3862ff7b41f29b62f7d19627186c/590B23A713C61062788A28062A473FB5.png"><br>解析<br>略<br>※题型:填空题※知识点:填空题※试题难度:中等<br>生物科学实验是我们应用科学方法、认识科学知识、形成科学概念的重要手段和途径.请回答下列问题:1.如图,观察蚯蚓的外部形态时,发现它的身体由许多彼此相似的环状结构是_______。用手指来回触摸蚯蚓身体腹面,感觉有些粗糙不平的小突起,它们是________。这些小突起能与_________协调配合,使身体蠕动。在实验中保持蚯蚓体表湿润是有利于蚯蚓能够进行_________。<img 2.观察动物走迷宫的实验,看出老鼠尝试错误的次数比蚯蚓要______,通过研究说明蚯蚓和老鼠的走迷宫的行为是常见的_______行为。<br>3.探究鱼的呼吸实验中,流出鱼体的水中溶解的气体成分与进入鱼体的水比较,_______减少,_______增多。<br>4.动物的行为多种多样。从获得途径来看,先天性行为和学习行为的区别是什么?<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bce6119e274a4bb493be634dd3d2eb05/61B9FDA476AC4C529FF7A5FDEB477882.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>某同学为了探究食物腐败的原因,获取食物保鲜的方法,设计了如下实验装置。请据此回答:<img <br>1.本实验探究的问题是________________?<br>2.本实验中的变量是______。<br>3.实验中A试管的作用是______,首先将肉汤烧开的目的是____________;试管加上棉塞的目的是_________。<br>4.预测的实验结果是:___试管中的肉汤容易变质,____试管中的肉汤不容易变质。<br>5.根据自己预测的结果,得出的实验结论是____________。<br>6.从探究实验中,我们知道食品的腐败主要是由______引起的。请列举出一种与该实验中肉汤保存原理相同的商品:____________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/cd0d901c338b44c4b181a5ebb6e16e92/6C719BF847B4533B09ABB128D8C49FC5.png"><br>解析<br>略<br>
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查看完整版本: 湖北省宜昌市东部2019-2020学年八年级上学期期中调研考试生物试卷