admins 发表于 2021-8-18 22:10:58

2012-2013学年吉林长春市朝阳区七年级上学期期中质量监测生物试卷(带解析)

※题型:单选题※知识点:单选题※试题难度:容易<br>制作人口腔上皮细胞玻片标本时,载玻片上滴加的液体、漱口的液体及染色的液体分别是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.凉开水、盐水、稀碘液<br>B.生理盐水、凉开水、稀碘液<br>C.盐水、酒精、碘液<br>D.稀碘液、凉开水、红墨水<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/E7D3E85673EFE9CB95D8D96898399586.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/DDAF6E78D8880922DAAFE725044573C0.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>经过染色的洋葱鳞片叶表皮细胞各个部分结构中,染色最深的是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.液泡<br>B.细胞核<br>C.细胞膜<br>D.细胞壁<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/E7D3E85673EFE9CB95D8D96898399586.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/71F14D1D4FCDCE4AB963CA54098085F8.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br><tbody><br>下列生物中仅有一种能量转换器的是<br><div[&nbsp;&nbsp;&nbsp;&nbsp;]<br>A.小麦&nbsp;&nbsp;&nbsp;&nbsp;<br>B.桃树&nbsp;&nbsp;&nbsp;&nbsp;<br>C.兔子&nbsp;&nbsp;&nbsp;&nbsp;<br>D.苹果树<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/924B3E38A9B17011DDBB929C9A570330.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>观察人口腔上皮细胞装片时,若发现视野中出现细胞重叠或边缘破损,不易观察,应采取的方法是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.换目镜<br>B.换物镜<br>C.移玻片<br>D.转粗准焦螺旋<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/924B3E38A9B17011DDBB929C9A570330.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/DBF8EA493EA83338B92A4C1F72268CB8.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>下列各项不属于生物的是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.“艾滋病”病毒<br>B.珊瑚虫<br>C.生长的蘑菇<br>D.死鱼<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/7039B1414292C98C4C0586321B67CF33.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/7F5E92F126FF5DEE9FBDE73295CD9EC4.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>俗话说“大树底下好乘凉”,“千里之堤,溃于蚁穴”,这些语句都体现了(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.生物依赖环境<br>B.环境影响生物<br>C.生物影响环境<br>D.生物适应环境<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/924B3E38A9B17011DDBB929C9A570330.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/C437E825ED2F7A72F95EF8E2B8E6AF28.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>绘制生物图时,以下叙述正确的是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.用2H的铅笔<br>B.用铅笔直接涂黑细胞核<br>C.字全部注在左侧<br>D.在水平的指示线右侧注字<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/7039B1414292C98C4C0586321B67CF33.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/D8CDFADA82D7537C1C73BFA26EF18CED.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列属于生态系统的是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.一块农田中的所有生物<br>B.一杯开水<br>C.一条河流<br>D.环境中所有细菌和真菌<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/924B3E38A9B17011DDBB929C9A570330.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/3F27CE4BB0A911A3A8CCEA3808F4621E.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>许多鸟具有保护色,但也难免被嗅觉发达的兽类所捕食,对此最好的解释是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.生存竞争<br>B.生物对环境完全不适应<br>C.生物对环境适应的相对性<br>D.鸟类对环境的适应能力太差<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/924B3E38A9B17011DDBB929C9A570330.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/EBEFDFC0F26B8AC422D26680881F5D9C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>观察人的口腔上皮细胞时,制成的玻片标本是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.临时装片<br>B.临时切片<br>C.临时涂片<br>D.永久涂片<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/8B0030C365994090B8FC9AF4C183A80B.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/CD491EF87DD9CBFE2EE4A283208B8F90.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>在欧美流行一种生态球,其内有水草、绿藻、2-3条小鱼、泥沙等,在这个处于平衡状态的封闭生态系统中,要使小鱼长时间存活必须提供(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.氧气<br>B.二氧化碳<br>C.太阳光<br>D.足够的有机物<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/924B3E38A9B17011DDBB929C9A570330.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/BC876B2DC3C42EF447A0E321A52076BD.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>显微镜的结构中,能调节光线强弱的是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.目镜和物镜<br>B.遮光器和反光镜<br>C.粗准焦螺旋和转换器<br>D.镜筒和通光孔<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/E7D3E85673EFE9CB95D8D96898399586.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/6132592380F20035E8D1C960706A9CDA.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>下图为显微镜下的两个视野,要将视野①变成视野②的效果,下列操作正确的是(&nbsp;&nbsp;&nbsp;)<br><img src="https://picture1.zhihuicn.com/2/9F33D003D6211629A39E7CA649B7B248.png"><br>style="vertical-align:middle;VERTICAL-ALIGN:middle;"><br><tbody><br>A.转动反光镜,选择平面镜<br>B.转动反光镜,选择凹面镜<br>C.向右下方移动玻片<br>D.向左上方移动玻片<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/7039B1414292C98C4C0586321B67CF33.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/062E7A75452399A60288F1921D309C8D.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>要了解植物在公园中的分布情况,常用的科学方法是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.测量<br>B.调查<br>C.观察<br>D.实验<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/E7D3E85673EFE9CB95D8D96898399586.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/3A3C2B32F3FDD47F4F677B35EF1521E6.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>下列叙述能够完整地表示一条食物链的是(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.刚刚躲过狐狸的野兔,又遭到鹰的袭击<br>B.大鱼吃小鱼,小鱼吃虾米<br>C.狐吃兔子,兔子吃草<br>D.猫头鹰捕食田鼠,狐也捕食田鼠<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/924B3E38A9B17011DDBB929C9A570330.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/4A8A0CFD26C9C2BDD317C019A9DBC8AA.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>为了防止鸟吃草籽,有人将人工种草试验用网子悬起来,预期结果可能是(&nbsp;)<br><tbody><br>A.牧草会长的很好<br>B.牧草将会受到虫子的危害<br>C.牧草的繁殖会受到影响<br>D.不一定<br></tbody><br><br>答案<br>略</br>解析<br>略<br>※题型:单选题※知识点:单选题※试题难度:容易<br>在玻片上写上“6﹤9”,则通过显微镜观察到的图像应是&nbsp;(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.6﹤9<br>B.6﹥9<br>C.9﹤6<br>D.9﹥6<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/E7D3E85673EFE9CB95D8D96898399586.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/5753CDE4FE3E6272352596B1C0F6212B.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>具备下列哪一特征的植物不适宜生活在沙漠环境中(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.叶片薄而宽大<br>B.具有发达的根系<br>C.具有肥厚的肉质茎<br>D.叶片退化成刺<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/8B0030C365994090B8FC9AF4C183A80B.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/76C28DBFBFBC2BECA31F7E269C06F041.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>某同学用10×物镜观察到视野中有8个排成一排的细胞,当他换用40×的物镜再观察时,他能观察到细胞个数为(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.2个<br>B.8个<br>C.16个<br>D.32个<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/8B0030C365994090B8FC9AF4C183A80B.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/1F621EB90D40E60472E04D089BFF967E.png"><br><br>※题型:单选题※知识点:单选题※试题难度:容易<br>某同学在显微镜下看到一些细胞,他判断观察到的细胞是植物细胞。他可能根据下列哪些结构作出判断的(&nbsp;&nbsp;&nbsp;)<br><tbody><br>A.细胞壁<br>B.细胞膜<br>C.细胞质<br>D.细胞核<br></tbody><br><br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/8B0030C365994090B8FC9AF4C183A80B.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/F7FFB9AC2AEBFC0530794012558E37CE.png"><br><br>※题型:读图填空题※知识点:读图填空题※试题难度:容易<br>生物圈是一个统一的<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>,是地球上最大的<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>,是所有生物共<br>同的家园。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/0E12FEBCCF782B9E5657B46BB0E67715.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/18CAA6B40DBEEA9C7CA2F3993B4FC633.png"><br><br>※题型:读图填空题※知识点:读图填空题※试题难度:容易<br>地球上<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>与其<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>的总和就叫生物圈。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/C28E3FBB6F973F5D342B85F12750C92C.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/18CAA6B40DBEEA9C7CA2F3993B4FC633.png"><br><br>※题型:读图填空题※知识点:读图填空题※试题难度:容易<br>观察番茄果肉细胞临时装片时,如果选用“10×”的目镜和“10×”的物镜,则每个细胞被放<br>大了<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>倍。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/9E1F29F322AB55C00E96B38314475A49.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/E12BC9F89DDB6A68B941B2572E73525D.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>用显微镜观察的材料一定要<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/FFE3D5C9315C4EC4F5A182CB64D6D09E.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/71E5B44CD36C130B61A447B563FECE59.png"><br><br>※题型:读图填空题※知识点:读图填空题※试题难度:容易<br>生态系统中,不同<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>之间,由于<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>与<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>的关系而形成的链状结构叫做食物链。很多食物链彼此交错连接,形成<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/A82932E887C3A5D29362487C0E7F1A20.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/0B2ABF74CDFBBE93D2185722639B9E80.png"><br><br>※题型:判断题※知识点:判断题※试题难度:容易<br>生物对环境的适应是普遍存在的,而不是个别现象。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(&nbsp;&nbsp;&nbsp;)<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/DC6AA8F977A6AD0E087A133DBB9CCB84.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/7215BF85006612A9B63D9FAE5ED4CE31.png"><br><br>※题型:判断题※知识点:判断题※试题难度:容易<br>由克隆羊多莉的诞生可以说明遗传信息主要在卵细胞中。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(&nbsp;&nbsp;&nbsp;)<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/64F190BD40D5AC2FF6BD1D2E39936A16.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/D4FED97E2FB589F2C02DECA1D7B55D60.png"><br><br>※题型:判断题※知识点:判断题※试题难度:较易<br>植物对刺激不能作出任何反应。(&nbsp;&nbsp;&nbsp;)<br>答案<br>略</br>解析<br>略<br>※题型:判断题※知识点:判断题※试题难度:容易<br>人类可以生产产品、创造财富,是城市生态系统中的生产者。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(&nbsp;&nbsp;&nbsp;)<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/64F190BD40D5AC2FF6BD1D2E39936A16.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/1482F0459FD22BB50B78620C727153F4.png"><br><br>※题型:判断题※知识点:判断题※试题难度:容易<br>“落红不是无情物,化作春泥更护花”。从生物学角度分析,在落花化作春泥的过程中,起决定作用的是阳光。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&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;&nbsp;&nbsp;&nbsp;&nbsp;(&nbsp;&nbsp;&nbsp;)<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/64F190BD40D5AC2FF6BD1D2E39936A16.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/650E52B4BDD5045ECE42E7B3D986A7FA.png"><br><br>※题型:判断题※知识点:判断题※试题难度:较易<br>大象、苹果、细菌、人体结构和功能的基本单位都是细胞。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(&nbsp;&nbsp;&nbsp;)<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/DC6AA8F977A6AD0E087A133DBB9CCB84.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/A597B47CA9D6AFE358ECA83E680F8C5F.png"><br><br>※题型:判断题※知识点:判断题※试题难度:较易<br>观察就是凭借肉眼详细、认真、全面地看。(&nbsp;&nbsp;&nbsp;)<br>答案<br>略</br>解析<br>略<br>※题型:判断题※知识点:判断题※试题难度:较易<br>生态系统中的消费者是可有可无的。(&nbsp;&nbsp;&nbsp;)<br>答案<br>略</br>解析<br>略<br>※题型:单选题※知识点:单选题※试题难度:较难<br>连线题:将下列内涵相同的生命现象用线连接起来。<img src="https://picture1.zhihuicn.com/2/17566B3BF04F1FDFAE6A59695EDFDA98.png"><br>style="vertical-align:middle;VERTICAL-ALIGN:middle;"><br>答案<br>略</br>解析<br>略<br>※题型:实验题※知识点:实验题※试题难度:中等<br>下图是制作洋葱鳞片叶表皮细胞临时玻片标本的几个步骤。请回答:<br><imgsrc="https://picture1.zhihuicn.com/2/FABEECB5C5D3B55E53C57DC54FA107B7.jpg"><br>style="vertical-align:middle;VERTICAL-ALIGN:middle;"><br>1.图示操作步骤的正确顺序是<u>&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;&nbsp;</u>。<br>2.图A正确方法是<u>&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;&nbsp;</u>。<br>3.如果图D滴的液体过多,材料和玻片容易浮动,你如何处理?<br><u>&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;&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;&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>4.用显微镜观察时,发现视野中有一黑边圆形物,轻压盖玻片,该物变形并移动,该物为<u>&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/85157211BDB030DE805EAAB411151CBA.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/E5BF48F1724209895C61A02B5D84E482.png"><br><br>※题型:实验题※知识点:实验题※试题难度:中等<br>右图是植物细胞模式图,请依图回答问题。<br><img src="https://picture1.zhihuicn.com/2/74C7535B1B42ACC85B9FDDCEF510BAC3.png"><br>style="vertical-align:middle;VERTICAL-ALIGN:middle;"><br>1.结构1位于植物细胞的最外层,它是<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>,具有<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>和<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>的作用。<br>2.如果把菠菜放入沸水中煮几分钟,水变成了绿色;而把菠菜浸在冷水里,水却不变绿,是因为活细胞中的结构<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>具有<u>&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;</u>的作用。<br>3.使洋葱呈紫色的物质主要存在于图中的结构<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>中。<br>4.细胞的控制中心是<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/66D8D4E58BBC76B274E2DF053FAB6489.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/E81B8ED258BC929ED336B3B54A81304D.png"><br><br>※题型:实验题※知识点:实验题※试题难度:中等<br>下图是某草原生态系统中部分生物之间关系的示意图,请根据图回答下列问题。<br><img src="https://picture1.zhihuicn.com/2/27CC47CEAC3DFE39C0FD968E73784552.png"><br>style="vertical-align:middle;VERTICAL-ALIGN:middle;">&nbsp;<br>(1)生态系统中的生物成分包括生产者、消费者和分解者。图中的草属于<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>,蛇、鼠、猫头鹰等动物属于<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>(2)图中共有<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>条食物链,其中最长的食物链是:<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>(3)该生态系统中数量最多的生物应该是<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>。<br>(4)如果猫头鹰的数量大量减少,鼠的数量会大量增加,则短时间内草会<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>(填“减少”或“增加”)。<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/12CDDFFB740F8BA2D8CF4A3E2201F6C7.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/DF32BF0CE4CC1D8E1F82C1A506C7BE06.png"><br><br>
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