甘肃省天水市2019年中考生物试题（含解析）
※题型：判断题※知识点：判断题※试题难度：中等<br>性状表现相同的生物个体,基因组成不一定相同。<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/b6dc8121787147b9a73d04dedcd8517d/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/71590656495a4cc693919e0e8498bc38/E5FEC66A915699182AA28858C722B47A.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>构成生物体的所有细胞中,染色体都是成对存在的。<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/0ca1d9a6b61740e9acc6df2e44f6a0dc/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/14e38c8d121047d6b4e7c0931a6019fd/F8B06DA726C030D22BA6CFF50FCDC08F.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>控制生物体同一性状的两个基因位于一条染色体上。<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/a01459aa5078477a8adf4222f8de5b58/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/4037ef262f944ddb9df132a82deb39ec/5682FFBF22BC08B09E0BFF5D1D8A41A0.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>生物因素是指环境中影响某种生物生活的其他生物。<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/39f742486a464d26bc26d861f7e6a3ed/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/2d1eedf375d04f85ac6d2597319639bd/514C72B35D0A37AC68088F915AB824DC.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>人们将“水葫芦”引种到昆明滇池后,很快在滇池蔓延,威胁到了其他生物的生存,这说明生物只能影响环境。______(判断对错)<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/76a62db0ffff416fa4cb4177309c49a9/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/b2c992b2b85b4a56aa6310a2810cc35f/3F55B1A04E43C4EF09241CEA5308E257.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>一个物种的灭绝,就意味着一个基因库的消失。<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/fb21b37048f245dc9ac72579515e7565/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/90f6f276ecbd4ef8857bf4ac950c3b4d/7556E21A8270A8863E9489384A6F705C.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>一种抗体是由多种抗原刺激产生的。<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/5397707be320431ea742e5385e4b6900/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/a9df64264b5e4d0a981f0b18d65ea3c1/30CA2C75A5DDAF208EAB93776E242E1A.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>酒后驾车发生重大车祸,造成伤亡事件,其主要原因是酒精会使人的神经系统过度兴奋或受到抑制。<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/1ffa585483224be9a7805ade3103401e/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/27cec8ad7de542d6901e69691e17c671/01F4DB87326760203DAB7A67F0978592.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>细胞分裂过程中,变化最明显的结构是<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/d9b55e6d4f444f53ad4b7a7139b4f5b1/97C26C058DBC966F9D99E1DF57793138.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/a883caf192634bf08eab15fbe02de0b6/A891B83FB173FDEE24AA6350CB5C5851.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>我国科学家<br> <br>利用野生水稻与普通水稻的多次杂交,培育出了水稻的新品种,创造了巨大的经济效益,被称为“杂交水稻之父”。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/50b18855ef84456f92684bd07fd4f3a9/FFCB1728F818834E6D879973D40A9DF8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/23a902814804433bb063dd283009fbc0/AABDCF5F0A5BEAB279A5ADAC2ED4ED2B.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>我国是裸子植物最丰富的国家,被称为“ <br>”。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/8ae2dfe15b764650bf9c01bdf1d6185d/B46235D0EB5208730FD2CADDA72FB09C.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/823069bb2ba14408a9fc07829b410df1/F1F81B122ABB667DE33D9FAD3F695F7A.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>生态系统具有一定的<br> <br>能力,但这种能力是有一定限度的。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/d7fe9b167ce24d4d83fefaefff957f81/E3DA1C04D1B7837791D19C85C934B903.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/d608b1ea57cd4b048beb1535a6007342/F5F28A267CEC031C6A4E1FA327CCECBF.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>中学生进入青春期,情绪变化较大,所以要学会通过<br>、宣泄烦恼、自我安慰的方式来调节自己的情绪,以保持愉快的心情。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/9d028cf8cbc44556b336fa3802ffe0ea/B5150ECA6DE6CFCAE6BAF97F7643D5F0.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/efee154c5537428cb3a6bdc3a9b9d841/A09D77007BA747736F866D16EB87B7F5.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>探究一种条件对研究对象的影响时,所进行的除了这种条件不同以外,其他条件都相同的实验,<br>叫作<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/6787330b50704fb1859525f7b3fe6d76/0B67DC2F2209459EEC07A9682BF0E6FC.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/1a7d889e8a8f452e9d107eea12753c08/42BBED4AC6025B168E9916241CEE7D41.png"><br><br>※题型：连线题※知识点：连线题※试题难度：较易<br>请将下列细胞结构与其相应的功能用直线连接起来。细胞壁 具有保护和控制物质进出的作用 细胞膜 具有保护和支持作用细胞质 是遗传物质存在的场所细胞核 细胞内的透明黏稠物质,具有流动性<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/461d3a54685b4bb790e56814a156cfd8/B21B4EB5C7BC60A20930368C00B0728A.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/2070a0f20f45489da306597e61c15e5b/F8B2670ECB7B02D31019096657436081.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>生物多样性是人类赖以生存和发展的基础。请简述保护生物多样性的主要措施。<br> <br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/5ed52901862f4c10b55b183d3d1b59f7/C7434FA3B9272959AC92DD48D4007A76.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/0aa73e21525e4fd588d19371ae417cb8/92425EAA653A49381F302D0B9657C7B5.png"><br><br>
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