一株白菜就是一个植物体，白菜苗的结构层次可以描述为[]A．分生组织→营养组织→输导组织→保护组织→白菜苗B．各种组织→白菜苗C．细胞→组织→器官→白菜苗D．细胞→组织→器官→系统→白菜-七年级生物

更多内容推荐

• 下列各项中不属于器官的是（）A．桃花和桃子B．油菜叶和玉米的籽粒C．树根和树枝D．番茄的果肉和菜豆的豆瓣-生物
• 小鸟和果树都是生物，但它们在结构层次上有明显区别，这种区别主要表现在它们有无下列哪种结构层次（）A．细胞B．组织C．器官D．系统-生物
• 以下哪项能正确表达出植物体的结构层次？（）A．细胞-组织-器官-系统-植物体B．器官-组织-细胞-植物体C．组织-器官-细胞-植物体D．细胞-组织-器官-植物体-生物
• 下列生物体的结构层次中，柳树不具有的是（）A．细胞B．组织C．器官D．系统-生物
• 如图中“b”表示由雌蕊的胚珠发育而形成的．从生物的结构层次上分析，“b”属于（）A．细胞B．器官C．营养组织D．输导组织-生物
• 植物的根、茎、叶，在生物的结构层次上属于（）A．细胞层次B．组织层次C．器官层次D．个体层次-生物
• 洋葱鳞片叶的一块内表皮，它们的细胞共同构成的结构属于生物体结构层次中的（）A．个体层次B．细胞层次C．器官层次D．组织层次-生物
• 绿色开花植物体的结构层次[]A．细胞→器官→组织→植物体B．组织→器官→细胞→植物体C．器官→组织→细胞→植物体D．细胞→组织→器官→植物体-七年级生物
• —Have you decided ____________ on April 1st?—I will put a piece of paper which says “Hi” on my broth
• — Could you tell me ___________? I must prepare for it.— Well, it will start at 9:00 tomorrow mornin
• — Can you tell me ____________?— In three days.A．when will they go to the Science MuseumB．how long t
• Mr. Li, can you repeat it again? I’m ____ slow to write down all the main points.A．soB．veryC．tooD．en
• –Could you tell me ______ yesterday?--I’m sorry, boss, My car was broken on my way here.A．why you c
• Have you determined ___________?A．next to do whatB．what to do nextC．how to do nextD．next how to do-九
• I ______ go to bed______ my mother came back home.A．won’t, untilB．didn’t, untilC．will, untilD．won’t
• --- What did Lucy ask just now ? ---- She asked _________________________.A．if there will be a meeti
• -- Could you please tell me __________? --- Sorry, you can turn to Mr. Li.for help.A．how long can ma
• --What did you say just now? --I asked you ______. A．why you wanted to become a nurseB．how long had
• —Do you know _____ now, Steven? —In Australia.A．Where Sarah lived B．where did Sarah live C．where Sar
• — Your father seemed worried about something this morning, why?— He wanted to ____________.A．where h
• The park ______we visited yesterday is an excellent one .A．whereB．in whichC．whoseD．that-高三英语
• Do you know?A.what’s her telephone numberB.what her telephone number isC.her telephone number is wha
• Now people have come to realize ________ harmful pollution is.A．that whatB．itC．that howD．how-九年级英语
• -Do you know the boyis sitting next to Peter? -Yes,He is Peter’s friend,They are celebrating hisbirt
• —Do you knowtomorrow? —David? Never! He hates outdoor activities．A．whether David will go cycling wit
• —Could you tell me ____________ ?--Sure. You can take the No3 bus to get there.A．where is the airpo
• Could you tell me when ___________?A．the train will arriveB．does the train arriveC．did the train ar
• My father told me _______. A．when he will travel to SingaporeB．how he finds his purseC．where he had
• He doesn’t know_______.A．to do whatB．to do howC．what to doD．how to do-九年级英语
• I don’t know________.Because he has to look after his mother.A．why he is leavingB．why is he leavingC
• ---Can you guess the new Nike sports shoes?---Yes. Maybe he asked his grandpa to pay for them, I thi
• Goldfish don’t know _______ to them three seconds ago.A．what happens B．what is happeningC．what happe
• — What a beautiful dress！Can you tell me _______?— Just the day before yesterday.A．when do you buy i
• --- Could you tell me?--- Certainly. In half an hour.A．when will the train to Chengdu leaveB．when th
• —Can I help you，dear?—Yeah，I don’t know a banana milk shake. Maybe you can teach me.A．what to doB．wh
• —We can use QQ to talk with each other on the Internet.—Really? But can you tell me _______it.A．how
• ---Excuse me, could you tell me _______?---Sorry, sir. I wasn't there at that time.A. how did t
• She asked ___________.A．if I have already got wellB．whether I had already got wellC．have I ready got
• Hobo doesn’t know ____________ .A．when to doB．what to doC．how to doD．where to do-七年级英语
• I know _________ I promised to take you to dinner, but I won't finish working until ten o’clock
• ----Do you know __________ for Shanghai last night?-------At 9:00.a. what time he left b. what time
• Did your father tell you ______?A．when he travelled to Hong KongB．how he goes to ShanghaiC．where he
• – Do you know ______?– He is tall and thin. A. how he looks likeB. what he looks likeC. what he like
• ----Excuse me, sir. Could you tell me________ ?----Sorry, I don’t know.A．where does he liveB．when wi
• —Jack，could you tell me __?--Sure.In the post office on Green Road.A．where you bought the stampsB．wh
• Computers are so popular in our country that every pupil knows _____ e-mails.A．how can he sendB．how
• --- I hear that Hu Jintao will come to Nantong because the Sutong Bridge is open to traffic soon.---
• — Could you tell me _____?— I’m sorry. The traffic was too heavy.A. why were you late for the meetin
• — I don't know_.— You can go and ask Jack.A．when does the train leave B．that we will plant tree
• He doesn’t tell me ______.Can you tell me his address? A. where he lives B. where does he live C. wh