贵州省遵义市湄潭县2019-2020学年七年级上学期期中考试生物试卷
※题型：单选题※知识点：单选题※试题难度：中等<br>下列各项中属于生物的是( )<br>A.会跳舞的机器人 B.馒头上长出的白毛<br>C.慢慢长大的钟乳石 D.永不停息的钟表<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2c7c1fc734114c68ab6439550cf3d15e/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f8ef90a9b35c48399ea655174c0b13e7/D32DBD4D5335EBE606E3C60C53CEEFC4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>生物多样性不包括( )<br>A.生物种类的多样性 B.遗传的多样性<br>C.生物形态的多样性 D.生态系统的多样性<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/870bbc43695249de93d16b988909a6bf/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/188d189233ac4869a86c9eb7c6eb21e9/39B241FBE57FA26A06DBD7B7DABFF98E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>沙漠中的仙人掌,扁平宽大的块茎可贮藏水分,刺状叶可减少水分的蒸腾散失,它说明了( )<br>A.生物适应环境 B.生物影响环境<br>C.生物依赖环境 D.生物与环境无关<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/84e247b378ec4f628e9fa8a77e6e1253/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e5af853b33994055bfc71b069f3baf7e/BEC02864C212A91C1482419249E30147.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列不属于生态系统的是( )<br>A.一片森林 B.一块草地<br>C.一个池塘 D.草原上的全部牛羊<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a47086d11a564e4ab152bc295d75826e/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8158c827117b4341959b36afd09a3d0f/0E56C0E48B407D461A661C7C21E989BE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列叙述中,属于生物因素对生物的影响的是( )<br>A.“葵花朵朵向太阳” B.“草盛豆苗稀”<br>C.“雨露滋润禾苗壮” D.“秋风少落叶”<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9a0bbc8223a340f298f2d08ddb3acdeb/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/09a189fb47a346d7a285a9ce0e7fd00b/CEC4AA87894350C3509816CA05B421B5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>被称为“分类学之父”的科学家是( )<br>A.沃森和克里克 B.达尔文<br>C.林奈 D.拉马克<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d71958e9a8c8442a98ff0ec84637f7ff/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ec53e5e39375410eb40f02ece02ecb0c/065D32CC8108FEBCBBA9F63781074277.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列实验中不需要设置对照的是( )<br>A.探究光对鼠妇分布的影响<br>B.探究温度对种子萌发的影响<br>C.观察番茄的果肉细胞<br>D.探究湿度对霉菌生活的影响<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3fd73a01690147569e06e0f94a1da9c4/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/abf10597ae9346439163abd845fbbdeb/67B1CE5CBFC59C8CFF640A352DAE86FA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在显微镜下观察同一部位的洋葱表皮,下列哪种组合看到的细胞数目最多( )<br>A.目镜5×物镜10× B.目镜5×物镜40×<br>C.目镜10×物镜10× D.目镜10×物镜40×<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0cb54e0c6d9f4a418d54ebe8f3c54936/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/4fc138a7ef284b818744054bcb29575f/14651E2846A6109EAFA8B8CCAFFD461F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>不论是大象还是小蚂蚁,其结构的基本单位都是( )<br>A.组织 B.器官 C.细胞 D.系统<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/86bd68b729da4fc49f910a932e1c100d/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/95a6f1a9bf874c60a664a897bbbd88ae/95D6086DCEA552C8C153D7CE983D1D55.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列生物中,不具细胞结构的生物体是( )<br>A.细菌 B.HIV病毒 C.草履虫 D.含羞草<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5e7f210fb8c64fbf83c596e0b6b21cd7/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/5804d98c61d54fbf8dc5530b16a190fe/4770EEABDC1ED943425D6487C18B3E8C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是人体某细胞图,其中染色体存在于哪个部位( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/28/3A33722020A6F15895B9381DE3557B78.png"><br>A.甲 B.乙 C.丙 D.丁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/495d02783b844ab88fb62fc1bf89f85f/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/25765740e0494c6eba569155968e0310/96B00886F841605B57FF51474442C965.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>我们观察洋葱表皮细胞和口腔上皮细胞,看到洋葱表皮细胞形状规则,而口腔上皮细胞不规则,这是因为洋葱表皮细胞具有( )<br>A.细胞壁 B.细胞膜 C.叶绿体 D.细胞质<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0451ed1b3213421dbf20867a3d287e81/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/250fbd46554146c8b56d49216fb18d62/E1704F618C3F4AC42A2659AE5B5579EA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>变形虫是单细胞生物,其中完成氧的摄入、二氧化碳的排出的结构是( )<br>A.细胞膜 B.细胞质 C.细胞核 D.液泡<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/46149a2ab5a94a98a54d49f841c050e5/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a0fd7d9f403949dc8ea84351a8194b1f/C147F2EC1E596DDE0B3C5F0AC5ED567E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>生物绘图的位置要适中,一般稍偏左上方,这样做的目的是( )<br>A.留出注字和写图名的位置<br>B.使图形更美观、整洁<br>C.便于用铅笔画出细胞结构的轮廓<br>D.增强图形的立体感<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bfd8209397544dda97100fd710470159/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3c78b12bb846409c91de680490588bf9/C1C6BD0A8D0DB5F91A186AFF03C17E1E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图为植物细胞分裂过程中不同时期的图象,按发生分裂的先后顺序,它们的关系为( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/28/5BB7ADFA10BC5BCFCC01AFF533CC1486.png"><br>A.c→d→a→b B.a→b→c→d C.a→d→b→c D.a→c→d→b<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7a7f03bd9a53407f9b0c78c3ce8df381/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/97b486d4781c42dba8a7e442a0d6c36a/3E9535E7C687941A997D9D2D74B5ECFC.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>人的体细胞在经过数次细胞分裂后,在形成的新的体细胞中染色体的数目( )<br>A.越变越多 B.越变越少 C.随机变化 D.保持不变<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f47f704ced8f45619014607a61a3c5e3/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/4f15f6fc54134313b4b8c9c9a5c9dbfe/7BD175BCCEB88BC765303DC1E9E341B6.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>甘蔗坚硬的外皮对内部各种组织起到保护作用,属于( )<br>A.保护组织 B.分生组织 C.输导组织 D.营养组织<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/939a189c0c2a454280b588e91cb4f82e/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c52150ef8ac9405b848a86fb4a5e0289/19FDD5A912A9A5ACC8BE511F71FE6175.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列属于绿色开花植物的营养器官的是( )<br>A.根、茎、果实 B.花、果实、种子<br>C.根、茎、叶 D.种子、茎、叶<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/fa613a710f23461fa11ddacb6e26f402/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/6f24ff2de9d243c7802b1d9b095ccc13/CFB0321E0D40AF50E4BC4A934360A453.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>比较大熊猫与竹子的生物体结构层次,大熊猫特有的结构层次是( )<br>A.细胞 B.组织 C.器官 D.系统<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ba21046281d845e9be41f37f6d70029c/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c990efbd16f740b89d8b67051ba84459/7D432C76EF67AEFF30D4D9749B42C0E3.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>每个植物细胞中都含有叶绿体。<br>_<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4d1d3af7a1724a5bb1231afcaf99a62d/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/47b41a4f809d4838ae88b3a99bead095/676AAF728B93A49231C96E5A98B007BD.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>分类学按大小和从属关系可排列为界、门、纲、目、科、属、种,其中“种”是分类学的基本单位。<br>_<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/89da7f35dff644db8e9bc6b1e988d86b/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a3bf9fec35a34c8fb56568046a9c5fff/25A60F4A136F97386EEFDE89516F8FFA.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>小明用显微镜观察材料时,发现视野中有一污物存在<br>.<br>于是,他移动<br>玻<br>片标本,污物不动;换用洁净的目镜后,污物仍然存在<br>.<br>据此判断污物最有可能在物镜上。<br>_<br>______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/707e8dbb16d14285a2cf2f4053c412de/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ff0e3ec5d1d54bc28b6b3cb6bce48f2f/C0CBAFC493C3DCFA05493293FD1868A0.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>生态系统由<br>成分和<br>成分组成,地球上最大的生态系统是<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/09b462563bcc4b3e996a03bb770b850c/371F370382C480A55A875A0CE2C766A3.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f22b3f82916548d592adb475429f1e95/1B7EBB16459387FFFF482EEDAE7F45F9.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>环境中影响生物形态、生理、分布的因素,叫生态因素。生态因素包括<br>和<br>两类。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9bb06678288a45848b57fa305cc13531/5A8041BFC4DC0FEE4E644A64BF334E38.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2a674386a9db43cd92b26e4071fa45b5/D7D1A8774BD06D041F9F2447EDC0AE2F.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>如图表示某植物体两种细胞的形成过程,①②③表示细胞不同的生理活动,据图回答下列问题:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/9/28/90EDB996E7E6DB7C70E75AA355DD34A5.png"><br>1.①②过程分别表示细胞的和。<br>2.表示细胞分化的序号是其结果是形成了不同的。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0d457d50be1a481397c4ff8bda66c13c/72461ED3BB3660591C244AB712512635.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b1e3f943aea84dc3b49b7fd091a2f44a/B7B6C2DE43729CAB6ECA9703FB9CAC6A.png"><br><br>
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