admins 发表于 2021-8-20 22:47:35

广西柳江中学2019-2020学年高二上学期期中考试生物(文)试卷

※题型:单选题※知识点:单选题※试题难度:较易<br>内环境稳态的重要意义是(&nbsp;&nbsp;)<br>A.维持体温处于较低水平<br>B.使体内各处pH保持相同<br>C.保持体内渗透压绝对不变<br>D.维持机体的正常生命活动<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2015/80437de0da734381b04d7ff9cc3ec349/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2015/129b1a06c4ea4de9a6f48a6918ccc171/692677B0D36662841F03799C6483E045.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>兴奋在神经元之间传递时,释放神经递质的结构是(&nbsp;&nbsp;)<br>A.突触间隙&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.线粒体&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.突触前膜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.突触后膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2018/feb97365f88b49e9848ecba1f11245e9/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2018/5e703fe915444ef49bc557f3e1affb02/92A1494CEECCF364848201C109FA1694.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>神经调节的基本方式是(&nbsp;&nbsp;)<br>A.反射弧&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.刺激&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.反射&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.条件反射<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2014/57bf1ebcd77146c39e10e0f9ac613d01/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2014/46b23c00328f4ebeafffa74ebcaa66ba/201D21103C69693C05A6E49A2999DFD6.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>在神经系统中,兴奋是以电信号的形式沿着神经纤维进行传导的,这种电信号称为(&nbsp;&nbsp;)<br>A.静息电位&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.反射&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.神经冲动&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.反射弧<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2015/6ca616e7bfa546f5841d51f80101181a/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2015/b2f0537feb8746d08ff5702140cb87db/E405B3242D5170A7EDDD5B893C900124.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>若给成年小白鼠每日注射适量甲状腺激素,连续注射多日后,会出现的现象是(&nbsp;&nbsp;&nbsp;)<br>A.发育明显加快&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.机体产热减少<br>C.体重快速增加&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.放入密闭小室中更易窒息死亡<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/f5b3149cc82e41fdb0191aa594cb2a10/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/3b18173f5ba54130ac19c7af4e60890b/34B98F0C0E8973D706AC4251ACF56013.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>恒温动物能够维持稳定的体温,原因是(&nbsp;&nbsp;)<br>A.产热过程与散热过程一样<br>B.机体产热量大于散热量<br>C.机体产热量和散热量保持动态平衡<br>D.物质代谢速率快<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/9afe21631e8e4b89aee828a746ff2558/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2017/63d0b5f2e0264d7a84b6bdef92b755a4/893553209D25EBDDE5334B1C7FAB9C55.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>给小白鼠注射一定量的胰岛素,小白鼠处于休克状态。为使其复苏,可适量注射(&nbsp;&nbsp;)<br>A.生长激素&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.甲状腺激素&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.葡萄糖溶液&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.生理盐水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2014/14889c51b9654b52b5f8b6fcc2815072/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2014/de52c9a2ad1b484aab710c291b47772b/48C6D78DE5AD758C4C25431C1626F80F.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>能分泌促甲状腺激素的部位是(&nbsp;&nbsp;)<br>A.垂体&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.甲状腺&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.性腺&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.下丘脑<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2014/9a3aaec3b3ad47df8e5d1a172bfbe6d4/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2014/1d0940ed2aab482aa9fdaab1a944349c/97C56D3482C67103C1F82B59F2A025AB.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列关于动物激素的阐述不正确的是(&nbsp;&nbsp;)<br>A.激素具有微量、高效的特点<br>B.激素可为细胞生命活动提供能量<br>C.激素是信息分子<br>D.激素作用于相应的靶细胞、靶器官<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2018/6176fb4511734a69a23b1abf78de4317/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2018/d60d3f3311b046958696435484f46cae/75E1B8A39A02D83081CF409B8FA9F388.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>在寒冷环境中,人体会发生骨骼肌不自觉战栗,这时(&nbsp;&nbsp;)<br>A.温度感受器兴奋&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.下丘脑的分泌功能增强<br>C.躯体运动中枢兴奋&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.皮肤血流量增加<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2013/1bd0eb5b35d24f12b12b55606f3daea5/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2013/cad071fdbc034e46aeada6fc9588964f/401D07325C7A240E5524C8BE3C555EBA.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>与神经调节相比,体液调节的特点是(&nbsp;&nbsp;)<br>A.反应迅速&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.定向运送调节物质<br>C.作用范围广泛&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.作用时间短暂<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/5040c6e4fc434209bfe5c6d491b7f201/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/e31d09cd9a0f42d788d5b8208ae9635b/876D38AC0889076ED085C4C2FBDD16B8.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>下列关于抗体的叙述,错误的是(&nbsp;&nbsp;)<br>A.抗体的本质是蛋白质<br>B.抗体是由浆细胞产生的<br>C.抗体的作用体现了蛋白质具有免疫功能<br>D.抗体参与非特异性免疫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/e2af4a3b01494528b1f7f5cf92de4b75/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2017/74aa61c628a84b54983ba57320cd587f/FBBE55FD7B3FA5F6585EBFC11EC99BF9.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列不属于过敏反应特点的是(&nbsp;)<br>A.一般不会引起组织严重损伤<br>B.发作迅速,反应强烈,消退较快<br>C.有明显的遗传倾向和个性差异<br>D.由机体初次接受过敏原刺激引起<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/f216d4423ee84e9390562ef40e63725f/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/c33ce719cbab4ad1b59f36bf96c830b1/594A1B81BD9CA990EDA16F27663C1085.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>预防接种是增强人体免疫力的有效措施之一。人体接种疫苗后会产生相应的抗体,体内产生抗体的细胞是(&nbsp;&nbsp;)<br>A.浆细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.吞噬细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.记忆细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.T淋巴细胞<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/90e8375ec3934966b08e40c0e6d5992c/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2017/f39d11bda2004f269d9be3fd4a9d4d24/7990A4F8625EBE4D40FF6D995A5629EC.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>关于人体生命活动体液调节的叙述,正确的是(&nbsp;&nbsp;)<br>A.饮水不足时,下丘脑抗利尿激素产生量会增加<br>B.促甲状腺激素的靶器官是甲状腺和垂体<br>C.胰岛素主要通过催化葡萄糖的氧化分解使血糖含量降低<br>D.饮食中缺碘时,血浆中促甲状腺激素的含量降低<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/7a7142f434304581a821c4198b78d27b/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/8dead44862c940e38f940f4c84ebe060/944259316B90E89F150834A53F795B22.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列关于抗体的说法,正确的是(&nbsp;&nbsp;&nbsp;)<br>A.抗体的化学本质主要是蛋白质,少部分是RNA<br>B.人体的抗体主要分布在血清中,在组织液和外分泌液中也有<br>C.抗体既能作用于细胞外的抗原,又能作用于细胞内的抗原<br>D.浆细胞和记忆细胞都能分泌抗体<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/5b244087cc974114ab904d914c710cdd/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2017/ce314702d58b418a9dd44877e4a587be/52E7AED96B8E64A11548ECF08EDF5360.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>在体液免疫中起主要作用的淋巴细胞是(&nbsp;&nbsp;)<br>A.造血干细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.T细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.吞噬细胞&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.B细胞<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2012/5827bae8509a445287f094c411371c49/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2012/06de8f13d1a04cf48ba574505971dff7/BB4039AFFA53FBDCE8C81E4A4468B96A.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列哪种状况下,胚芽鞘将向光弯曲生长(&nbsp;&nbsp;)<br>A.<img src="https://picture2.zhihuicn.com/testImage/1/2017/6/28/C333774FF926F3D877B3DD2A2D627DDF.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/1/2017/6/28/C0018161CD3C8E5B47F5D2A22660C01B.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/1/2017/6/28/538AF0EBF4E735658B3B4DA15EDD4493.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/1/2017/6/28/E64FDD4C7965A2244709B91D3204D232.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/c3908deaa84a4ca8b130d5fa61b543d0/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2017/31f098f60fd443239325b82f9608bb85/C8A602438C6945A2711CD629BE6F7A6C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>果园工人为了来年丰收,每到秋冬季节都要对果树进行修剪其目的是(&nbsp;&nbsp;)<br>A.利于果树越冬&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.减少病虫危害<br>C.促进侧芽生长&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.减少有机物消耗<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/e4a40e020e64403d911c64650a5c8d02/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br>略<br>※题型:单选题※知识点:单选题※试题难度:容易<br>关于植物激素的叙述,不正确的是(&nbsp;&nbsp;)<br>A.生长素促进细胞伸长生长<br>B.赤霉素促进种子的萌发<br>C.乙烯仅在成熟果实中合成<br>D.细胞分裂素促进根尖细胞分裂<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2014/e1408806d8e84525b47e98e70b2f7f3d/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2014/6de88ba5cfc74eb4ae065e7a2414e81d/2E48602D5EB08FEF8CACB0D9FBDBC058.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>下图示扦插的四个葡萄枝条,其中最易成活且生出的根最多的是(&nbsp;&nbsp;)<br>A.<img src="https://picture2.zhihuicn.com/testImage/1/2012/9/12/96BC626C557797F2679525E7FE52C53E.png"><br>&nbsp;&nbsp;<br>B.<img src="https://picture2.zhihuicn.com/testImage/1/2012/9/12/63CD5B8F414D9B2EEBB8A5704A6F04D1.png"><br>&nbsp;&nbsp;<br>C.<img src="https://picture2.zhihuicn.com/testImage/1/2012/9/12/396620F0DD358AE6943DC5D569F1783B.png"><br>&nbsp;&nbsp;<br>D.<img src="https://picture2.zhihuicn.com/testImage/1/2012/9/12/00A693BA11B07CDF1508F0E3F3690958.png"><br>&nbsp;&nbsp;<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2012/c250528b7c5749588973dddf783807e7/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2012/0131f25e97be460282e21ae3e65eeef2/57EEA244B521F08F965C695E62FD65BD.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>下列关于种群数量特征的叙述,错误的是(&nbsp;)<br>A.种群密度是种群最基本的数量特征<br>B.出生率和死亡率影响种群数量的变化<br>C.年龄组成可以预测种群数量的变化<br>D.性别比例会影响出生率和死亡率<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/d163a92a6c5e47538c512d796ddd935c/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/dbedc70ed0c44a89bb2845254edccb96/742F757684EDF5F99848481B6D8947F4.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>在酵母菌的培养中,如果不更换培养液,其种群数量的增长模式为(&nbsp;&nbsp;)<br>A.直线&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.“S”型曲线&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.“J”型曲线&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.不规则曲线<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2014/097a603104c14df3b90d1dff901ad742/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2014/7b0fa487028a4de7bb975a38328ef93e/91B2F7B4831F3621DFB983C9DFDA2143.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>下属于种群范畴的是(&nbsp;&nbsp;&nbsp;)<br>A.一座山上所有的马尾松<br>B.一块草地上所有的昆虫<br>C.一个池塘内所有的鱼类<br>D.一个公园内所有的树木<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2013/01bb790cf1dc4215bc34ccc10223e465/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2013/84bb058bf235454ebe042cd97ef00e7e/82D7AF481A9468878D9794610D6BBF98.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>种群在理想环境中呈“J”型曲线增长;在有环境阻力条件下,呈“S”型曲线增长。下列有关种群增长曲线的叙述,正确的是(&nbsp;&nbsp;)<br>A.当种群达到K值后,增长率为0<br>B.种群中出现环境阻力是在K值之后<br>C.对于害虫的防治应在K/2之后进行<br>D.K值是环境的最大容纳量,不会随环境的变化而改变<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/d244e0f595824bf4bc34b1ea38fa2444/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/722ad7ab52f24df18351e8ad6414d7f1/EED08FB56A8CF9F6425B7BA26BB1A391.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>狼群追捕马鹿,常常是几只狼在后面追,另几只狼在前面抄近路堵截,配合默契。狼群个体之间以及狼群与马鹿之间的关系分别是(&nbsp;&nbsp;)<br>A.种内互助与捕食&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.种内斗争与竞争<br>C.种内斗争与捕食&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.竞争与种内斗争<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2011/8c1791c0c1ec419c82c3611fb0baf598/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2011/a6341a521302454d9d598528b72a730d/C241550C29D7708A315A08A37A792A4D.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列关于生态系统信息传递的叙述,正确的是(&nbsp;&nbsp;)<br>A.物理信息只来源于无机环境<br>B.行为信息只能向异种生物传递<br>C.性外激素能向同种昆虫传递<br>D.信息只能从低营养级向高营养级传递<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2012/291cf21bc4284669b6ce582a6cb773da/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2012/00e31d506a43477482e0dba4d2089c0a/BB09E83BD2D5A5AA9848F01A286A3BC5.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>图中甲、乙、丙分别代表热带雨林生态系统中的三种组成成分,其中丙为分解者,下列有关叙述正确的是(&nbsp;&nbsp;)<imgA.丙处于两个营养级<br>B.图中包含两条食物链<br>C.图中的箭头可以表示物质和能量的传递方向<br>D.乙→丙的能量传递效率为10%~20%<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2014/e36668de44f9482bbb59fb0abdc30122/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2014/dec8a50898bd4bd5abce70befda588cc/4859A67BC3F3656A24F396207AC343D1.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>对森林生态系统能长期维持相对稳定状态原因的叙述中,正确的是(&nbsp;&nbsp;)<br>A.其恢复力稳定性要比草原生态系统高<br>B.其自我调节能力小于其他生态系统<br>C.其营养结构的复杂性比农田生态系统低<br>D.一种生物大量减少后,其作用可由同一营养级的多种生物取代<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2013/a79384b6e0a34882b1246a2016fa01c1/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2013/63be6213f0ce4aa2aa7a8e5220f2a0cf/92F1395B8AE9AF2673B1B992E5273570.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>生物多样性的价值一般可概括为三个方面:潜在价值、间接价值和直接价值,下列哪个选项属于间接价值(&nbsp;&nbsp;&nbsp;)<br>A.森林和草地对水土的保持作用<br>B.丰富多彩的热带鱼吸引了大批游客观赏<br>C.结构简单的微生物通常作为实验材料<br>D.形态各异的动物为艺术的创作提供了材料<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2013/c7da54d00f434dd1ae7b18eb6fc69e6d/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2013/329be117f27e4ef3a0784a7b0c384383/781EEBFAED0A5993B240E8353ACA51CA.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列实例中,通过食物链而引起生态危机的是(&nbsp;&nbsp;)<br>A.温室效应&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.臭氧层破坏<br>C.酸雨&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.有毒物质的富集<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2013/d1a3cc918e5d415cad53bf8405a0a68c/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2013/da872a06c74b4d4f97739ba6dadfc474/DF90813C2A6C0495EBECDE857AC6842B.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>如图为生态系统食物网的示意图。该食物网中(&nbsp;&nbsp;)<imgA.共有两条食物链<br>B.能量可循环利用<br>C.鹰和蛇只有捕食关系<br>D.昆虫和鼠处于同一营养级<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2012/90f054f0dce9423ca0a0579b6a3cced9/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2012/7604f87886f4483e92e111570a5ad6b7/B9DEE60596FC3AC9C996BBEEFD0C4129.png"><br><br>※题型:读图填空题※知识点:读图填空题※试题难度:较易<br>如图所示是突触传递信息的示意图,请据图回答。<br><img<br>1.图中②是,③是。2.当神经末梢有神经冲动传来,突触小泡释放①使突触后膜产生兴奋时,突触后膜两侧电位表现为。3.兴奋在神经元之间的传递是(单向/双向)的,整个过程的信号变化为电信号→→电信号。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/92c3d07985f44b3593c740a1082f5201/39BD73F90F84BD8897700B5CE1375A1B.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/e17ded3822d04b61b80c99d73086ba2c/7A16B92DD34CD18BA8F13B9E9BF211EC.png"><br><br>※题型:读图填空题※知识点:读图填空题※试题难度:较易<br>食物链、食物网是生态系统的营养结构,生态系统的物质循环和能量流动是沿着此渠道进行的.假如在某温带草原上存在如图所示的食物网.请分析回答:<br><img<br>1.该生态系统的成分中,草、猫头鹰分别属于。2.该食物网的各种生物中,占有能量最多的是,其能量流动的特点是。3.在生态系统的物质循环中,碳元素以形式在生物群落与无机环境中进行循环,各种生物通过作用使碳元素回到无机环境中。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/78a0fe3532664195b9558f0940c15343/F54EBAA7F359444F60F9AABA212E9F6F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/150a805338fc45d9a3a1b9a6a4789073/DD9CE9D7F5A4F90203A52B56517BE49A.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>人乳头瘤病毒<br>(HPV)6<br>和<br>型、人乳头瘤病毒<br>β<br>属<br>(5<br>和<br>型除外<br>)<br>和<br>γ<br>属都能致癌,易引发子宫宫颈癌,严重危害妇女的身心健康。为彻底征服<br>HPV<br>带来的危害,中外科学家进行了长期的研究。如图是<br>HPV<br>入侵机体后,机体做出的应答示意图,据图回答。<br><img<br>1.HPV在免疫学上被称作。图中④是。2.图示过程称为,(填“能”或“不能”)清除HPV。3.目前,针对HPV已经研制出预防效果较好的四价疫苗和九价疫苗,我国普遍使用四价疫苗,为得到较好的预防效果,医生建议三次注射疫苗,其原因是:初次免疫可以产生,再次免疫会刺激,产生大量。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/e0544207aebe4998812e4b754228ed3b/B2ECDB54E217D4B5DEE4BE85572D0136.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/1d7b6c85e96f48c392cb936c290a7548/82AEC725AF27744E6C6FE5D80A76516E.png"><br><br>
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