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> 人们常用扦插、嫁接等方法繁殖果树,同有性生殖相比,其主要优点是[]A.后代具有更强的生活力B.每代每年可提前结果C.增加后代变异性D.后代保持亲本性状-八年级生物
人们常用扦插、嫁接等方法繁殖果树,同有性生殖相比,其主要优点是[]A.后代具有更强的生活力B.每代每年可提前结果C.增加后代变异性D.后代保持亲本性状-八年级生物
题目简介
人们常用扦插、嫁接等方法繁殖果树,同有性生殖相比,其主要优点是[]A.后代具有更强的生活力B.每代每年可提前结果C.增加后代变异性D.后代保持亲本性状-八年级生物
题目详情
人们常用扦插、嫁接等方法繁殖果树,同有性生殖相比,其主要优点是
[ ]
A.后代具有更强的生活力
B.每代每年可提前结果
C.增加后代变异性
D.后代保持亲本性状
题型:单选题
难度:偏易
来源:专项题
答案
D
上一篇 :
嫁接就是把一个植物体的芽或枝
下一篇 :
一棵苹果树上能结出“国光”、
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题目简介
人们常用扦插、嫁接等方法繁殖果树,同有性生殖相比,其主要优点是[]A.后代具有更强的生活力B.每代每年可提前结果C.增加后代变异性D.后代保持亲本性状-八年级生物
题目详情
B.每代每年可提前结果
C.增加后代变异性
D.后代保持亲本性状
答案