我们栽培玉米的生殖方式为有性生殖．______．-生物

更多内容推荐

• -The parents try to do everything for their son.-That is________they are mistaken.[ ]A whereverB.whe
• Mary wrote an article on________ the team had failed to win the game.[ ]A. whyB. whatC. whoD. that-高
• The last time they had great fun was_________ they were leaving college.[ ]A. where B. how C. when D
• —Could we accomplish the task according to the schedule?—I doubt that. The problem remains _____ we
• My mother passed the driving-test at her first attempt. It was all ______ she had been practicing so
• You are saying that everyone should be equal, and this is ______ I disagree?[ ]A. whyB. whereC. what
• 图中生物的生殖现象不属于无性生殖的是（）A．秋海棠叶B．小麦种子C．果树嫁接D．组织培养-生物
• 下图是南瓜的发育过程示意图，请据图回答：（1）雄蕊的＿＿＿＿里的花粉散出后，以一定方式传送到雌蕊的柱头上，叫做传粉。传粉是受精的前提。（2）图中的[4]是由[2]中的发育来的。（3-八年级生物
• 济宁市第八届“喻屯甜瓜”节成功举行。甜瓜为一年生蔓生草本植物。甜瓜的栽培主要包括育苗、定植、田间管理等主要过程。其花的特点主要是：雄花托短，花药聚合；雌花膨大，花柱-八年级生物
• 下列植物器官中，与植物的营养无关，而与植物的生殖有关的是A．根B．茎C．叶D．花-八年级生物
• Put the books back ____ they belong after you have finished them.[ ]A. where B. to where C. to which
• — Do you think it wise for Chinese parents to try to do everything for their children? — No, that�
• The last time we had great fun was________ we were visiting the Water Park. [ ]A. whereB. how C. whe
• 下列技术属于有性生殖的是（）A．通过组织培养保持名贵花卉的优良性状B．克隆技术产生“多莉”C．嫁接繁殖无核蜜桔D．试管婴儿的培养产生-生物
• Don't answer me with a simple "yes" or "no". Explain ______ possible.[ ]A.
• _____ our eating ties in with our stress level is being studied and soon it will be clear.[ ]A. That
• 水稻的抽穗、扬花、结实过程是一个有性生殖的过程，因为在这一过程中，水稻（）A．开了花B．贮存了有机养料C．产生了精子和卵细胞D．精子和卵细胞结合成了受精卵-生物
• 下列生物的生殖现象属于有性生殖方式的是（）A．秋海棠叶B．小麦种子C．马铃薯D．水螅-生物
• 无性生殖与有性生殖的本质区别是（）A．能否由母体直接产生新个体B．能否进行细胞分裂C．是否有两性生殖细胞的结合D．有无细胞数量的增多-生物
• Unable to move because of the injury in his leg, Jack was forced to wait _____ he was, wrapped in Mi
• 进行无性生殖的植物，是不具有有性生殖能力的．______．-生物
• The world's population hit 7 billion on Monday among celebrations and concerns about_______ the
• 受精卵是植物个体发育的起点．______．-生物
• You'd better begin the preparations now and the most important thing is to check ______ the lab
• The old lady's hand shook frequently. She explained to her doctor _______this shaking had began
• -Do you think it wise for Chinese mothers to try to do everything for their children?-No，that's
• 岭南佳果荔枝要结出荔枝，必须要经过开花、传粉、______、形成______和种子的过程，这种生殖方式属于______生殖．-生物
• 植物的许多器官都能繁殖后代，用下列器官繁殖属于有性生殖的是（）A．叶B．根C．茎D．种子-生物
• 下列植物的繁殖方式中，属于有性生殖的是（）A．一颗葵花籽长成一株向日葵B．紫背天葵的枝条长出了新的根系C．椒草的叶片长成新植株D．马铃薯块茎发芽生根-生物
• Our bad living habits will destroy the earth.Only by changing we live can we save the earth.[ ]A. th
• 下列生物的生殖方式中，属于有性生殖的是（）A．在环境适宜时，嫁接的桃树枝条会成活B．将秋海棠的叶子放在适宜的环境中会萌发长出新植物体C．玉米种子播种到土壤中，会萌发长出新-生物
• We haven't discussed yet____ we are going to place our new furniture.[ ]A. that B. which C. wha
• 植物可通过两性生殖细胞的结合进行______生殖，还可以通过______、______等方式进行无性生殖．-生物
• If we work with a strong will,we can overcome any difficulty, great it is. [ ]A.whatB.how C.howeverD
• -You see, I'm poor in maths, you are not good at English, and…-That's ________we should he
• — Can you describe _____ it happened? — Yes, I was riding on my bike _____ a car knocked me down fro
• [2009年莆田市学业考试]我市的荔枝素以品种多、产量高、质量优而闻名，栽培的品系或单株有20多个，其中“陈紫”更是全国著名的优良品种，上世纪初，它还远涉重洋，传入美国南部-生物
• 经过两性生殖细胞的结合的生殖方式叫做______．这是生物界最常见、最重要的生殖方式．-生物
• 下列哪一项属于有性生殖（）A．椒草的叶子长成新植株B．马铃薯的块茎发芽生根C．鸟卵孵化出小鸟D．把仙人球嫁接到仙人掌上-生物
• No matter how far you may fly, never forget _____ you come from. [ ]A. whenB. howC. where D. what-高三
• 藕的节上生出的不定芽将发育成新个体，这种生殖方式属（）A．无性生殖B．有性生殖C．以上两者都是D．以上两者都不是-生物
• 下列关于有性生殖的叙述，错误的是（）A．有性生殖一般是具有两性生殖细胞结合过程B．有性生殖后代有更强的生活力C．有性生殖是由植物的根、茎、叶等器官发育成的新个体D．有性生殖-生物
• He always thinks________he can do more for the people.[ ]A．whatB．howC．of howD．of what-高三英语
• 开花植物都能进行有性生殖．______．-生物
• The last time we had great fun was_____ we were visiting the Water Park. [ ]A. howB. whenC. why D. w
• — What clothes should we wear to attend the ball?— Dress ____ you like.[ ]A. what B. however C. what
• I love the job of selling guitars. That'smy strengths meet my passions for music. [ ]A. whatB.
• 下列植物的生殖方式是有性生殖的是（）A．椒草的叶能长成新植株B．向日葵通过种子繁殖后代C．月季可用枝条来扦插繁殖D．桃可用嫁接来繁育优良品种-生物
• 有性生殖就是由______发育新个体的生殖方式．无性生殖就是不经过______的结合，由______直接产生新个体的生殖方式．-生物
• This photo of mine was taken _____ stood the famous high tower. [ ]A. which B. where C. in which D.