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> 刘芳同学要探究某种植物生长是否需要含氮的无机盐,设计方案如下:请你帮她将探究活动的过程填写完整。(1)提出问题。(2)作出假设。(3)实验步骤:①配制种类齐全的无机盐培养液放-七年级生物
刘芳同学要探究某种植物生长是否需要含氮的无机盐,设计方案如下:请你帮她将探究活动的过程填写完整。(1)提出问题。(2)作出假设。(3)实验步骤:①配制种类齐全的无机盐培养液放-七年级生物
题目简介
刘芳同学要探究某种植物生长是否需要含氮的无机盐,设计方案如下:请你帮她将探究活动的过程填写完整。(1)提出问题。(2)作出假设。(3)实验步骤:①配制种类齐全的无机盐培养液放-七年级生物
题目详情
刘芳同学要探究某种植物生长是否需要含氮的无机盐,设计方案如下:请你帮她将探究活动的过程填写完整。
(1)提出问题
。
(2)作出假设
。
(3)实验步骤:①配制种类齐全的无机盐培养液放在甲中。②配制与甲相比缺少
。③将两株生长状况相同的幼苗同时分别培养在甲和乙中,过一段时间后长势情况如上图。
(4)起对照作用的是
。
(5)得出结论
。
题型:读图填空题
难度:中档
来源:同步题
答案
(1)含氮的无机盐影响植物的生长吗?
(2)含氮的无机盐会影响植物的生长(或含氮的无机盐不会影响植物的生长)
(3)含氮
(4)甲
(5)含氮的无机盐会影响植物的生长
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题目简介
刘芳同学要探究某种植物生长是否需要含氮的无机盐,设计方案如下:请你帮她将探究活动的过程填写完整。(1)提出问题。(2)作出假设。(3)实验步骤:①配制种类齐全的无机盐培养液放-七年级生物
题目详情
(2)作出假设 。
(3)实验步骤:①配制种类齐全的无机盐培养液放在甲中。②配制与甲相比缺少 。③将两株生长状况相同的幼苗同时分别培养在甲和乙中,过一段时间后长势情况如上图。
(4)起对照作用的是 。
(5)得出结论 。
答案
(2)含氮的无机盐会影响植物的生长(或含氮的无机盐不会影响植物的生长)
(3)含氮
(4)甲
(5)含氮的无机盐会影响植物的生长