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> 根据所学知识,回答下列问题:(1)请写出绿色植物进行光合作用的反应式___________________。(2)“妃子笑”是优良荔枝品种,为了保持其优良性状,最好用__________方法繁殖。(3
根据所学知识,回答下列问题:(1)请写出绿色植物进行光合作用的反应式___________________。(2)“妃子笑”是优良荔枝品种,为了保持其优良性状,最好用__________方法繁殖。(3
题目简介
根据所学知识,回答下列问题:(1)请写出绿色植物进行光合作用的反应式___________________。(2)“妃子笑”是优良荔枝品种,为了保持其优良性状,最好用__________方法繁殖。(3
题目详情
根据所学知识,回答下列问题:
(1)请写出绿色植物进行光合作用的反应式___________________。
(2)“妃子笑”是优良荔枝品种,为了保持其优良性状,最好用__________方法繁殖。
(3)在荔枝开花期间,果农老王把一些雄花的花蕊取下来并去触碰雌花的花蕊,果农老李则在林中放养了大量蜜蜂,他们这些做法都有利提高结果率。 其中果农老王的做法实际上是在进行
。
(4)为防治害虫,果农往往在荔枝开花、结果期间频繁地喷洒农药。试分析评价这样做有什么危害?_________________________。
题型:填空题
难度:中档
来源:广东省中考真题
答案
(1)二氧化碳+水
有机物+氧
(2)嫁接或无性繁殖
(3)人工辅助授粉
(4)一是污染环境,二是农药残留物会间接进入人体,危害人的健康
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题目简介
根据所学知识,回答下列问题:(1)请写出绿色植物进行光合作用的反应式___________________。(2)“妃子笑”是优良荔枝品种,为了保持其优良性状,最好用__________方法繁殖。(3
题目详情
(2)“妃子笑”是优良荔枝品种,为了保持其优良性状,最好用__________方法繁殖。
(3)在荔枝开花期间,果农老王把一些雄花的花蕊取下来并去触碰雌花的花蕊,果农老李则在林中放养了大量蜜蜂,他们这些做法都有利提高结果率。 其中果农老王的做法实际上是在进行 。
(4)为防治害虫,果农往往在荔枝开花、结果期间频繁地喷洒农药。试分析评价这样做有什么危害?_________________________。
答案
(2)嫁接或无性繁殖
(3)人工辅助授粉
(4)一是污染环境,二是农药残留物会间接进入人体,危害人的健康