优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> 根据如图回答下列问题:(1)图中太阳光、空气属于生态系统的______部分.(2)图中属于初级消费者的是______,属于最高消费者的是______.(3)螳螂的发育属于不完全变态,与家蚕相比-八年级
根据如图回答下列问题:(1)图中太阳光、空气属于生态系统的______部分.(2)图中属于初级消费者的是______,属于最高消费者的是______.(3)螳螂的发育属于不完全变态,与家蚕相比-八年级
题目简介
根据如图回答下列问题:(1)图中太阳光、空气属于生态系统的______部分.(2)图中属于初级消费者的是______,属于最高消费者的是______.(3)螳螂的发育属于不完全变态,与家蚕相比-八年级
题目详情
根据如图回答下列问题:
(1)图中太阳光、空气属于生态系统的______部分.
(2)图中属于初级消费者的是______,属于最高消费者的是______.
(3)螳螂的发育属于不完全变态,与家蚕相比,没有______的时期.
(4)“螳螂捕蝉,黄雀在后”表达了食物链中部分生物的吃与被吃的食物关系,请正确书写出图中所包含的完整食物链______.
题型:解答题
难度:偏易
来源:不详
答案
(1)生态系统的组成包括非生物部分和生物部分.非生物部分有阳光、空气、水、温度、土壤(泥沙)等;生物部分包括生产者(绿色植物)、消费者(动物)、分解者(细菌和真菌).因此图中太阳光、空气属于生态系统的非生物部分.
(2)消费者是指不能进行光合作用,必需以现成的有机物为食的动物.营养级别主要看它所在的营养级,直接以生产者为食的是初级消费者如蝉;以初级消费者为食的是次级消费者如螳螂;依次类推越往后营养级别越高.处在食物链末端的消费者营养级别最高是高级消费者如蛇.
(3)完全变态发育,昆虫在个体发育中,经过卵、幼虫、蛹和成虫等4个时期的叫完全变态发育,如家蚕等.不完全变态发育发育经历卵、若虫、成虫三个时期,例如:蟑螂等.因此螳螂的发育与家蚕相比,没有蛹期.
(4)食物链是消费者和生产者之间吃与被吃的关系.不包括非生物部分和分解者.因此图中所包含的完整食物链是:绿色植物→蝉→螳螂→黄雀→蛇.
故答案为:
(1)非生物;
(2)蝉;蛇;
(3)蛹;
(4)绿色植物→蝉→螳螂→黄雀→蛇.
上一篇 :
如图表示的是能量流动方向的示
下一篇 :
用be动词的适当形式填空。1. W
搜索答案
更多内容推荐
---Honey, stay home before I return. ---I _______, mum. A.mustB.can C.willD.should-九年级英语
---Is the girl in the red skirt your sister?---No. It _______ be her. She has flown to Australia.A.c
---Dad, must we wait until the light becomes green?---Yes, I’m afraid we ______. That’s the traffic
The man in the office ____be Mr. Black because he phoned me from London just now.A.mustn’tB.may not
This blue car ____________ be Bob’s bcause his car is black.A.can’t B.must C.could D.would-九年级英语
下列有关生产者、消费者和分解者之间关系的叙述,不正确的是()A.生产者可为消费者提供食物和栖息场所B.消费者有助于植物传粉、受精、种子传播C.分解者可将动植物遗体分解成无-八年级生物
—Where is Jack, please?—He _____ be in the reading room. [ ]A. can B. need C. would D. must -九年级英语
Each of you _____ unique means you each _____unique.[ ]A.is, is B. are, areC. are, isD. is, are -七年级
将下列句子改为否定句。1. Mrs Green is my history teacher.Mrs Green _____ _____ my history teacher.2. Her father
— Do you know whose magazine is it?— I think it be Lily’s, for we can find her name on the cover.A.c
— Be quiet, the head teacher Mr. Gu is coming.— Don’t worry. It _____ be him. Mr. Gu is much fatter.
— Simon, when are we going to have a class meeting this week?— Sorry. Ask our monitor, please. He kn
--Must I finish my homework now?--No, you _______ You can do it tomorrow.A. can't B. needn'
-Two hundred yuan for such a T-shirt! You ______ be joking!-I’m not joking . It’s made of silk.A.can
—–I think the man over there must be Tom.—–It _____ be him. He has ______ to America.A.can’t;goneB.c
如图表示生态系统的组成,图中X、Y分别代表()A.绿色开花植物、酵母菌B.绿色开花植物、蝗虫C.生产者、酵母菌D.消费者、草-八年级生物
用am, is或are填空。1. He _____ my cousin.2 What_____ these?3. Here _____ two eggs for your sister.4. ____
从生态系统的组成来看,洞庭湖中的所有鱼属于()A.生产者B.消费者C.分解者D.非生物成分-八年级生物
You _________ get up so early. It’s weekend today.A.mustn’tB.can’tC.needn’tD.oughtn’t-九年级英语
I’m very glad I have my own room in my house. I ____ do all I like in it.A.can B.must C.willD.need-九
—Must I pay for the bill now, boss?—No, you __________ pay for it after the meal.A.needn’tB.can’tC.m
—Must I finish the homework tonight?—No, you.You can finish it tomorrow.A.mustn’tB.needn’tC.need D.m
—You look pale. What's wrong with you?—I_____ terrible. I think I have the flu.[ ]A. feelB. fel
—Could I invite my friends to my birthday party?—Sorry, you ______.A.canB.can’tC.couldD.couldn’t-九年级
Her shoes _____ twenty dollars and his T-shirt_____ also twenty dollars.[ ]A. are;are B.are;is C.is;
用所给词的正确形式填空。1. That ______ (sound) interesting. 2. ______ you ______ (have) a tennis racket? 3. My b
如图表示某生态系统中生物之间的食物关系.据图回答:(1)从生态系统的成分看,水稻属于______,青蛙属于______.除了图中表示出的成分外,该生态系统还应有______、非生物的物质-八年级生物
–– ________ I come back before 6 o’clock?–– No, you _______ . But you ______ be back later than 7 o’
---Shall we meet at the station at 7 am?---In fact, we _______. The train _______ until 9 a. m.A.mus
-I walk such a long way on such a hot day .-Oh, dear ! You____ be tired and thirsty. Sit down and ha
---I don’t want to go to school on foot. What should I do? ---You try asking your father for a bike,
–Look at that red bike, it _____ belong to you. I have seen you ride it. --But it ____ be mine. Mine
The class meeting _____ from 3:00 to 4:00 yesterday.[ ]A. beganB. startsC. lasted D. started-八年级英语
—Can you swim in the river? — No, I _____. [ ]A. mustn't B. may not C. can't D. needn'
— Who is the man in front of our classroom? Is it Mr. Zhang? — No, it ______ be him. He is much tall
I want to _____ in the music club.[ ]A. amB. beC. isD. are-七年级英语
下列关于生态系统的能量流动的叙述中错误的是()A.能量是沿着食物链依次流动的B.能量在生态系统的流动时单向的C.能量在沿食物链的传递过程中是逐级递增的D.能量流动是生态系统-八年级生物
--- Shall we meet at the station at 8 a.m.?--- In fact we _________. The train _________ until 10 a.
– May I smoke here?-- No, you ______.A. can’t B. mustn’t C. may not-九年级英语
---Could I have some snacks between meals, mum?---No, you __________.A.couldn’tB.shouldn’tC.can’tD.m
---Fifty dollars for such a T-shirt! You _______ be joking!---I’m serious.It’s made of silk.A.mustB.
—"Do you want to go swimming this afternoon?" —"Yes, if the weather _____ warm."
Four hundred dollars for just a pair of shoes? You ______ be joking!A.mayB.canC.can’tD.must-九年级英语
句型转换,每空一词。1. That is my friend. (改为复数句)Those _______ my_______.2. —Is that your mother? (作否定回答)—No,
如图一表示某生态系统中的食物网;图二表示的是某条食物链中三种生物体内所含有机物总量的直方图.请据图回答下列问题:(1)作为一个完整的生态系统,图一中缺少的生物成分是__-八年级生物
用am, is或are填空。1.I_______a boy.2.What _______ this in English?3.His name Tony.4.How ______ you?5.She
Generally speaking, there _______ be any survivors(幸存者) after such a long time. However, two young p
I _____ a good idea.[ ]A. think it's not B. am afraid it's not C. don't think thatD.
---I want to know if I can smoke here?---No, you _________. Could you see the sign “NO SMOKING” ther
— Where’s Lucy ? — She ________ in the office. I saw her there just now.A.can’t beB.must beC.can beD
返回顶部
题目简介
根据如图回答下列问题:(1)图中太阳光、空气属于生态系统的______部分.(2)图中属于初级消费者的是______,属于最高消费者的是______.(3)螳螂的发育属于不完全变态,与家蚕相比-八年级
题目详情
(1)图中太阳光、空气属于生态系统的______部分.
(2)图中属于初级消费者的是______,属于最高消费者的是______.
(3)螳螂的发育属于不完全变态,与家蚕相比,没有______的时期.
(4)“螳螂捕蝉,黄雀在后”表达了食物链中部分生物的吃与被吃的食物关系,请正确书写出图中所包含的完整食物链______.
答案
(2)消费者是指不能进行光合作用,必需以现成的有机物为食的动物.营养级别主要看它所在的营养级,直接以生产者为食的是初级消费者如蝉;以初级消费者为食的是次级消费者如螳螂;依次类推越往后营养级别越高.处在食物链末端的消费者营养级别最高是高级消费者如蛇.
(3)完全变态发育,昆虫在个体发育中,经过卵、幼虫、蛹和成虫等4个时期的叫完全变态发育,如家蚕等.不完全变态发育发育经历卵、若虫、成虫三个时期,例如:蟑螂等.因此螳螂的发育与家蚕相比,没有蛹期.
(4)食物链是消费者和生产者之间吃与被吃的关系.不包括非生物部分和分解者.因此图中所包含的完整食物链是:绿色植物→蝉→螳螂→黄雀→蛇.
故答案为:
(1)非生物;
(2)蝉;蛇;
(3)蛹;
(4)绿色植物→蝉→螳螂→黄雀→蛇.