学年度浙教版科学七年级下册第5节 植物生殖方式的多样性知识点练习含答案解析第一篇.docx
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学年度浙教版科学七年级下册第5节 植物生殖方式的多样性知识点练习含答案解析第一篇.docx
《学年度浙教版科学七年级下册第5节 植物生殖方式的多样性知识点练习含答案解析第一篇.docx》由会员分享,可在线阅读,更多相关《学年度浙教版科学七年级下册第5节 植物生殖方式的多样性知识点练习含答案解析第一篇.docx(27页珍藏版)》请在冰豆网上搜索。
学年度浙教版科学七年级下册第5节植物生殖方式的多样性知识点练习含答案解析第一篇
2019-2020学年度浙教版科学七年级下册[第5节植物生殖方式的多样性]知识点练习[含答案解析]第一篇
第1题【单选题】
如图为植物繁殖的几种方式,有关叙述不正确的是()
A、①是组织培养,可以培育植物新品种
B、②是嫁接,属于人工营养繁殖
C、③是压条,能保留母体的优良性状
D、①②③都是无性生殖
【答案】:
【解析】:
第2题【单选题】
有些植物的花常具有的招引昆虫前来传粉的结构是()
A、花药和柱头
B、花丝和花柱
C、花蜜和花瓣
D、蜜腺和雄蕊
【答案】:
【解析】:
第3题【单选题】
下列植物的繁殖方式中,属于有性生殖的是()
A、土豆块茎繁殖
B、油菜叶组织繁殖
C、玉米用种子繁殖新植株
D、石榴的压条繁殖
【答案】:
【解析】:
第4题【单选题】
登革热病是经蚊子叮咬人体而传播的血液传染病。
为控制该病的传播,2015年科学家在广州某岛释放了50多万只被打了“绝育疫苗”的雄性蚊子。
这些雄蚊与野生雌蚊交配后所产的卵不能发育,最终使蚊子数量降低。
下列说法错误的是()
A、雌蚊与正常的雄蚊交配产生后代属于有性生殖
B、某登革热患者的体温在较长时间处于39℃,此时机体产热等于散热
C、上述控制传染病的做法属于控制传染源
D、该岛上所有的蚊子及其它生物属于一个生物群落
【答案】:
【解析】:
第5题【单选题】
“麻屋子红帐子,里面住着白胖子”说的是花生的果实,结合下面的概念图分析,下列叙述正确的是()
子房①→果皮
胚珠→②果实
A、“麻屋子”指的是①
B、“红帐子”指的是果皮
C、“白胖子”指的是②中的胚
D、花生的果实属于组织
【答案】:
【解析】:
第6题【单选题】
雌蕊不包括下列哪个结构()
A、柱头
B、子房
C、花药
D、花柱
【答案】:
【解析】:
第7题【单选题】
下列生殖方式不属于无性生殖的是()
A、椒草用叶子繁殖新植株
B、马铃薯用块茎繁殖新个体
C、水稻用种子繁殖新植株
D、
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