下列生物中属于单细胞植物的是[]A．草履虫B．衣藻C．水绵D．病毒-七年级生物

更多内容推荐

• — Will Liu Ying come to school today? — I don't know. But I also want to know. [ ]A. that she w
• — Is the lake there beautiful?— The photo will show you _____.[ ]A. how does it look likeB. what doe
• 属于真菌的单细胞生物是[]A．草履虫B．衣藻C．变形虫D．酵母菌-七年级生物
• I can't send an e-mail. Would you please show me_______?[ ]A. what to do it B. where to do C. w
• Recently I am busy writing a guide and the guide describes ______.[ ]A. how I think wilt life on Mar
• 绝大多数生物都具有细胞结构，下列属于单细胞生物的是[]A．丹顶鹤B．山羊C．柳树D．变形虫-七年级生物
• —That actor often joins in different activities in Beijing. Do you know ________? —For 5 years. [ ]A
• We have heard what he has said; we are waiting to seehe will do. [ ]A．how B．what C．when D．that -九年级英
• I really don't know ______ about it. [ ]A. what to do B. how to do C. to do what D. how can I d
• 绝大多数生物都具有细胞结构，下列属于单细胞生物的是[]A．丹顶鹤B．山羊C．柳树D．草履虫-七年级生物
• I’ll go there if ittomorrow.A.not rain B.not rains C.doesn’t rain-八年级英语
• I am waiting for my friend. , I will go swimming alone.A．If he doesn’t comeB．If he won’t comeC．If h
• _________ it is snowing, it isn’t very cold.A．IfB．WhenC．BecauseD．Although-八年级英语
• They will telephone the police and complain about it the noise.A．if; stopsB．unless; stopsC．if not; s
• If Simon hard, he better results in English.A．work; getsB．works; getsC．works; will getD．will work; w
• －Can you tell me Kitty’s address.－I don’t know, either. But I’ll tell you her address as soon as she
• My sister isn’t in. ________ she comes back, I’ll let her call you back. A．WhileB．UntilC．BeforeD．Whe
• I’m waiting for my friend. , I’ll go shopping alone.A. If she comes B. If she doesn’t come C. If she
• Though Tom just left school, _ _ he went to studying at home.[ ]A. 不填 B. yet C. but D. and-八年级英语
• --Do you know if he _______ to play basketball with us?--I think he'll come if he __________ fr
• If I _______ what the teacher says, I'll go and ask him for help.[ ]A. won't understandB.
• 按括号内的要求改写下列句子。1. We stopped playing basketball because of the rain yesterday morning.(改为同义句) We stop
• _____ you try it, you will find it is a joyful sport.[ ]A. As soon as B. As well asC. As long as D.
• it is getting late,we must start at once.[ ]A. As B. Since C. For D. Because -九年级英语
• I hear Ann will give up learning the piano.-If she ___________, her parents will be mad at her. [ ]A
• If you ______ have ID card, they ______ let you in. [ ]A. do; won't B. will; will C. don't
• We'll fly kites this Sunday _____. [ ]A. if it is wind B. if there is wind C. if there will be
• George will send us an email as soon as he ______ in London.[ ]A. is arrivingB. will arriveC. arrive
• If Tom _____ here tomorrow, I _____ you.[ ]A. comes, tell B. will come, will tell C. comes, will tel
• We'll go hiking if it ______ tomorrow. [ ]A. won't rain B. doesn't rain C. is raining
• If it ______, I'll go to the zoo. [ ]A. won't rain B. don't rain C. doesn't rain
• —Do you know _______? I'm going to see him. —Sorry, I don't know. [ ]A. where he lives B.
• — Could you please tell meour tickets? — Go ahead. [ ]A. where do we show B. where we do show C. whe
• 下图所示的两种生物进行运动分别依靠A．表膜和伪足B．纤毛和细胞膜C．纤毛和伪足D．表膜和细胞膜-七年级生物
• 草履虫在水中运动是借着（）A．纤毛的摆动B．虫体的屈伸C．肌肉的收缩D．表膜的曲折-七年级生物
• 下列关于单细胞生物的叙述中，错误的是A．整个身体由一个细胞构成B．能够完成呼吸排泄和对外界刺激发生反应等各项生命活动C．都是对人类有害的D．大多数生活在水域环境中-七年级生物
• 将下列对应项进行连线。草履虫有叶绿体衣藻无细胞壁醋酸杆菌无成形细胞核酵母菌无细胞结构艾滋病毒有细胞壁、细胞核，无叶绿体-八年级生物
• 对净化污水有一定作用的单细胞生物是A．疟原虫B．大肠杆菌C．草履虫D．蝗虫-九年级生物
• 下列生物中不具有细胞结构的是（）A．细菌B．霉菌C．病毒D．蘑菇-八年级生物
• 草履虫通过下列哪项进行呼吸？-七年级生物
• 科学家们在研究涡虫的行为实验中假设涡虫喜欢黑暗，将一只涡虫装入试管，并装满晒过的自来水，用胶皮塞好管口。然后在试管中部做一个标记，靠近试管塞的一端记为A端，另一端-八年级生物
• 请根据图回答问题：（1）图中⑧具有______的功能．图中④是______，具有______的功能．（2）在适宜的环境中，草履虫通过______进行生殖．下面是探究草履虫对刺激反应的实验：（你）从培养
• 变形虫、草履虫等原生生物的伸缩泡功能，相当于人体哪一种器官的功能？（）A．心脏B．肺脏C．肾脏D．胰脏-生物
• 洋葱、番茄、草履虫等生物体都是由许多细胞组成的．______改：______．-生物
• 如图甲为植物细胞模式图，乙为草履虫结构示意图，请据图作答：甲中的3应该指在细胞质处吧？（1）甲图中起支持和保护作用的是〔①〕______，吃西瓜时会感觉有甜的味道，该物质存在于-生物
• 生物圈中还有不少肉眼很难看到的生物，它们的身体是由一个细胞构成的，称为______，如______等，大多数生活在______环境中．-生物
• 在显微镜下观察草履虫时，能够观察到（）A．细胞质静止不动B．正在以出芽生殖方式进行繁殖C．多个大小不同的食物泡D．正在通过表膜吸收氧气，排除二氧化碳-生物
• 如图是草履虫结构示意图，据图回答：（1）草履虫呼吸是通过[2]______完成的．（2）与细菌相比，草履虫在结构上的特点是______．（3）草履虫在水中运动是依靠______的摆动．（4）某同学在-
• 草履虫的运动器官是纤毛．______．-生物
• 下图①～④为各种生物的结构简图．不具有细胞结构的是（）A．①B．②C．③D．④-生物