这绿萝是从我妈妈办公室摘回来的。刚拿来的时候才有圆珠笔那么长,现在都有60厘米多了。而且我把这株绿萝的头掐掉,泡出根来,就又可以种一株了,所以我现在又有一株,也有50厘米多了。
它们长了一个月,就已经涨到了15厘米左右,结果长着长着,它们尽然围着它们的花盆长。长的那株已经围了一圈了,短的那株也已经围了半圈,好神奇啊!
虽然是两株绿萝,但它们长的方向是一样的。它们各绕了花盆一圈以后开始直着长,才长成现在的长度。
我现在还梦想着,要是绿萝爬满我们整个家那该多好啊!
”有些道理并不适合所有的事物!”奶奶听后大笑起来:“真是傻丫头,我没有骗你,因为糖果它没有生命,所以种不出来。你真是骗子,说什么种豆得豆,种瓜得瓜!跑去问奶奶:“奶奶,为什么为你的大蒜都长大了,而我种得糖果一点反应也没有?
哦!现在我终于明白不是所有的东西都能种出来。大自然的事物都是有一定规律的。这个世界真神奇,还有好多好多的奥秘等着我们去发现。
自然规律是物质运动固有的、本质的、稳定的联系,表现为只要对应客观条件具备这一规律即起作用且具有不变性,反之这一规律即会失效,各类规律互不干扰,其不以人的意志为转移,社会规律亦如此。
人类对于自然规律的认识是随着自然科学的发展而发展的,在古代对这种认识带有直观性,在近代具有机械论的特征。在现代,人类对自然规律的认识不仅克服了古代和近代的片面性,孤立性,而且得到了扩展和深化。
大自然的规律与事物的联系:
1、本质的联系
任何规律都是事物的内在根据和本质联系。例如:万有引力定律揭示了事物之间的本质联系,元素周期律揭示了元素的化学性质与原子序数之间的本质联系,生产关系与生产力状况相适应的规律揭示了物质生产方式的内容及其本质联系。
2、必然联系
任何规律都是事物必定如此、确定不移的趋势。例如:人类社会必然由低级社会形态向高级社会形态发展,暂时的曲折倒退,不能改变历史前进的总趋势。
3、稳定联系
任何规律都是同类现象背后的共性,是丰富多彩的现象背后的性稳定联系。规律的稳定性也就是它的相对重复性。只要条件具备,某种规律就会重复起作用。
仙人掌的成长规律作文:
我家的阳台上有一盆仙人掌.由十几根像小手指头一般粗的、长短不一的茎组成,长的有十几厘米,短的也就几厘米,它长得很绿很绿.每一个仙人掌上都有数不清的、毛茸茸的小刺,小刺的底下是一个个小小的鼓包,在仙人掌的顶上有一簇簇较硬的刺,像是戴了一顶小帽子.在每一支仙人掌顶端的侧面,都开着一朵鲜红鲜红的小花,错落有致、鲜艳夺目.我非常喜欢那些小花,总是看着它们.我忍不住碰了它一下,感到很硬,还有点扎手,没有鲜花的那种娇嫩的质感,好像是假的.
记得有一天回家,来到凉台上看仙人掌.我用手轻轻地摸着它,没想到手被扎了一下,鲜红的雪一下子流了出来.我生气了,指着仙人掌说:“以后再不给你水喝,看你怎么活?”
几个星期的一个晚上,我和妈妈在凉台上乘凉.忽然我的眼睛一亮,只见仙人掌还是长得那么绿.我问妈妈:“仙人掌这么多天没浇水,怎么没有死呢?”妈妈解释说:“这是因为仙人掌原来生长在热亚带或亚热带的干旱地区,为了适应缺水的环境,仙人掌在自己厚墩墩的茎部储存着大量的水分.但是光储存水分这远远不够.植物体内水分的消耗,主要是通过叶子向外蒸发的.叶子的面积越大,蒸发的水分就越多.为了减小叶子的表面积,仙人掌的叶子就退化成了又尖又硬的刺了.”听了妈妈的话,我才明白,原来仙人掌的叶子变成刺状,是为了减少失水量,以便在炎热干燥的地方生存.另外,仙人掌的叶子退化为刺状,也可以避免外来者的侵犯.
妈妈还告诉我:“仙人掌能在沙漠里生存,与它的茎、根都有关系.仙人掌的茎肥厚多汁,能储存大量的水分.仙人掌的根系发达,可以扎入到地下很深的地方.充分吸取地下的水,用于自身的生存.这样仙人掌在没水的情况下也可以存活很长的时间.”妈妈的话使我恍然大悟,对仙人掌肃然起敬.它以顽强的精神,在恶劣的环境中生存了下来.同时它可以美化环境,供人们观赏,给人们带来美的享受.
禾苗从种籽下地,发芽,出苗,移栽,成长,开花,结果是禾苗的生长规律。
兔子的生长比较快,一般4个月左右就可以长大了,一般生长周期有12年左右,从出生到衰老死亡的整个生长周期分为以下阶段:
1.仔兔期
仔兔期,又叫哺乳期,指出生到断奶的时期,一般为28~42日。这个阶段的兔子,以母乳为主,所以要特别注意母兔泌乳的质量与数量。
2.幼兔期
幼兔期是指断奶当天至3月龄的时期,一般为42~90日。这个阶段的兔子,消化器官发育都不完备,由以吃奶为主过渡到以饲料为主,最容易因食物而导致生病,这个时期是影响仔兔成活率的关键。因此,除了要加强管理,注意卫生外,还应喂营养丰富、易消化的饲料,并逐步达到正常的日粮标准。
3.中兔期
中兔期,又叫青年兔、后备兔、育成兔,指满3月龄至初配前的时期,一般为90~180日。这个阶段的兔子,消化器官发育基本成熟,对各种营养元素因身材的发育需求量逐渐加大。
锁阳为多年生肉质寄生草本植物,高10-100cm。无叶绿素,全体呈暗紫红色或红色。地下茎短粗,具多数瘤突状吸收根。
茎肉质,圆柱形,下位埋于土中,通常仅顶端露于地上,基部稍膨大,直径3-6cm,鳞片状叶第生,在茎基部密集,覆瓦状吸收根。
茎肉质,圆柱形,下位埋于土中,通常仅顶端露于地上,基部稍膨大,直径3-6cm。
鳞片状叶互生,在茎基部必集,覆瓦状排列,上部呈稀疏螺旋状排列,长达1cm,宽不足1cm,先端尖。坚果球表,很小。花期5-6月,果期8-9月。
春笋长成竹,竹根报出来的笋,笋再长成竹,以此循环,年年有笋。
蝉一生的生长过程
蝉每年的6~7月会从蛹变成成虫然后在短短的数日内产卵,从卵开始,到若虫在地底生活的过程。
1、从蝉蛹到蜕皮,蝉蛹的前腿呈勾状,成虫从空壳中出来时,它就可以牢牢地挂在树上。蝉蛹必须垂直面对树身,这一点非常重要。这是为了成虫两翅的正常发育,否则翅膀就会发育畸形。蝉将蛹的外壳作为基础,慢慢地自行解脱,就像从一副盔甲中爬出来。
2、蝉在蜕变之后的生命只有短短的几周,破涌而出。当他们临死前会生下下一代的蛋,幼虫经过几年的时间在地下成长,然后接着爬出地面,上树,蜕变。 由地蝉变成真正的蝉。
3、蝉一般是在中午最热的时候从地下钻出来的,最初刚从地面出来时,较小,中午时,阳光非常强,幼蝉在灌木上颜色逐渐变黑,待全黑后就可展翅飞走。所以有两点不同,一点是时间,大家熟知的是黄昏或晚上,而在新疆是中午;另一点新疆的蝉出土时是没有壳的。
叶片上可见的脉纹。由贯穿在叶肉内的维管束或维管束及其外围的机械组织组成。为叶的输导组织与支持结构。它一方面为叶提供水分和无机盐、输出光合产物,另一方面又支撑着叶片,使能伸展于空间,保证叶的生理功能顺利进行。叶脉在叶片中呈有规律地分布,通过叶柄与茎内的维管组织相连。
叶脉的排列方式称为脉序,主要有三类:(1)网状脉序,具有明显的主脉,主脉分出侧脉,侧脉一再分枝,形成细脉,最小的细脉互相连接形成网状。是双子叶植物脉序的特点。按侧脉分出的方式不同,还可以分为羽状脉序和掌状脉序,前者如夹竹桃、梨和枇杷等;后者如蓖麻、南瓜和葡萄等。(2)平行脉序,多数主脉不显著,各条叶脉从叶片基部大致平行伸出直到叶尖再汇合,是单子叶植物叶脉的特征。如小麦、芭蕉、棕榈和玉簪等。(3)分叉脉序,各条叶脉均呈多级的二叉状分枝,是裸子植物银杏具有的一种比较原始的脉序,并普遍存在于蕨类植物中。
This is green trailing plants is picked from my mom office. There just is ball-pen when just was being taken so long, there are 60 centimeters many now. And I drop the head clutch of this plant green trailing plants, bubble gives a root to come, can plant again one individual plant, so I have one trunk of a tree again now, also have 50 centimeters many.
They grew a month, had gone up to 15 centimeters or so, as a result long move is growing, they all grow round their flowerpot like that. Long that individual plant had surrounded circuit, short that individual plant also had been surrounded half rounds, very magical!
Although be two plant green trailing plants, but their long way is same. After each circled flowerpot circuit, they begin straight move to grow, just blossom present length.
I still am dreaming now, if green trailing plants climbs full we are whole this are much then better!
" some truths do not suit all things! " the yock after the grandma listens rises: "Really foolish girl, I did not cheat you, because of candy it does not have life, plant so do not come out. You are cheater really, say what is planted the beans gets a beans, kind melon gets melon! Run to ask a grandma: "Grandma, the garlic that why is you was brought up, and am I planted so that a bit reaction also does not have candy?
Oh! I understand not all thing can be planted eventually now. The thing of nature has certain law. This world is really magical, still a lot of mystery of a lot of is waiting for us to discover.
The order of nature is some of corporeal sports firm, essence, stable connection, expression acts well namely to want corresponding external condition to have this one law only and have fixity, conversely this one rule is met namely invalidation, noninterference of each other of of all kinds rule, its are not move with the person's volition, social rule also is like this.
The human understanding to the order of nature is as the development of science development, to this kind in ancient time understanding contains intuitionistic sex, in latter-day have mechanistic feature. Be in contemporary, the mankind overcame ancient time and latter-day one-sided sex not only to the understanding of the order of nature, isolated sex, and got expand and be deepeninged.
The connection of the rule of nature and thing:
1, substaintial connection
Any rules are the underlying basis of the thing and substaintial connection. For example: The the law of gravity announced the substaintial connection between the thing, elemental cycle law announced the substaintial connection between elemental chemistry and atomic number, relations of production and the rule that productivity state gets used to announced the content of corporeal production means reachs his to be contacted constitutionally.
2, inevitable connection
Any rules are a thing the sure and such, trend that does not move certainly. For example: Human society develops to advanced society configuration by elementary society configuration necessarily, temporary labyrinthian retrogression, the general trend with unalterable ongoing history.
3, stable connection
Any rules are the general character of congener phenomenon backside, the sex of the phenomenal backside that is rich and colorful stabilizes connection. Regular stability namely its opposite repeatability. Want a condition to have only, some kind of rule can repeat effective.
The growing rule of cactus writes a composition:
There is a cacti on the balcony of my home. Resemble a pinkie by ten the head is general thick, the cauline composition with differ accident, have ten centimeters longly, short also a few centimeters, it grows very greenly very green. Have on each cacti incomputable, brushy spinule, of spinule next it is each small beat parcel, there is thorn on the top of cactus, resembling was to wear a small hat. In the flank of each cacti top, opening a bright red and bright red floret, strewn at random have send, thunder-and-lightning. I like those floret very much, always look at them. I couldn't help touching it, feel very hard, still have bit of prick the hand, without the sort of delicate simple sense of the flower, be like be a holiday.
Remember coming home one day, will to balcony see cactus. I am feeling it gently with handle gently, did not think of the hand was plunged into, bright red snow flowed at a draught. I got angry, pointing to cactus to say: "Or else is drunk to your water after, see you how live? See you how live??
A of a few weeks night, I and mom enjoy the cool on balcony. Suddenly my eye shines, see cactus only or grow so greenly. I ask mother: "Cactus so much the day did not water, how be done not have dead? " mom explanation says: "Because cactus grows in heat so,this is inferior belt or semi-tropical arid area, be short of the environment of water to suit, cactus is storing in the cauline ministry of own very thick many moisture. But light stores moisture this is far insufficient. Of the moisture inside frond use up, basically evaporate outwards through leaf. The area of leaf is larger, evaporating moisture is more. The surface to reduce leaf is accumulated, the leaf of cactus degraded the needle was pricked forcedly again. " if listening to mom, I just understand, the leaf of original cacti turns thorn into shape, it is to decrease dehydrate quantity, so that be in burning hot and dry place,live. Additional, the leaf of cactus retreats melt into to prick shape, of the arrival outside also can avoiding encroach.
Mom still tells me: "Cactus can live in desert, the bine with it, root is relative. The cauline fleshy of cactus is juicily, can store many moisture. The root system of cactus develops, can tie underground's very dark place. Absorb subterranean water adequately, be used at oneself live. Such cacti also can survive below the circumstance that does not have water very long time. " mom's word makes my suddenly be enlightened, to cactus be filled with deep esteem. It with indomitable spirit, lived to come down in harsh environment. It is OK at the same time beautification environment, view and admire for people, bring beautiful enjoyment to people.
Seedings of cereal crops from kind seed go to the fields, gemmiparous, emerge, transplant, grow, blossom, the growth that is seedings of cereal crops as a result the rule.
The growth of bunny is faster, general 4 months left and right sides is OK and grown, grow commonly cycle has 12 years or so, from what be born to anile death whole grow periodic cent is the following phase:
1. young hare period
Young hare period, call lactation again, point out the period that is born to ablactation, it is 28 ~ 42 days commonly. The bunny of this phase, with the mother breast is given priority to, want the quality that secrete of rabbit of special attention female breeds and amount so.
2. young hare period
Young hare period it is to point to ablactation to came that day in March age period, it is 42 ~ 90 days commonly. The bunny of this phase, peptic development imperfectly, by give priority to in order to suck the breast transfer to be given priority to with feed, bring about because of food the most easily fall ill, this period is the key that affects young hare survival rate. Accordingly, besides should strengthen management, outside noticing sanitation, still should feed nutrition feed of rich, digestible, reach normal ration level stage by stage.
The hare in 3. period
In hare period, call young hare, mothball hare, Yo to become hare again, point to full in March age to the period before matching first, it is 90 ~ 180 days commonly. The bunny of this phase, peptic growth matures basically, increase gradually because of the growth demand of the figure to all sorts of nutrition elements.
Chinese cynomorium is herb of vivacious flesh qualitative parasitism, tall 10-100cm. Without chlorophyll, collectivity shows dark amaranth or red. Subterranean bine is short thick, have most tumor dash forward shape absorbs a root.
Cauline flesh is qualitative, cylindrical, below in be being buried at earth, normally only top is shown on the ground, base ministry a bit expand, diametical 3-6cm, scale shape Xie Disheng, be in cauline radical ministry is concentrated, fu covers with tiles shape absorbs a root.
Cauline flesh is qualitative, cylindrical, below in be being buried at earth, normally only top is shown on the ground, base ministry a bit expand, diametical 3-6cm.
Each other of scale shape leaf is unripe, cauline radical ministry needs collect, fu covers with tiles shape is arranged, upside shows shape of few and far between helix to arrange, be as long as 1cm, wide insufficient 1cm, tip needle. Nut ball is expressed, very small. Florescence 5-6 month, month of fruit period 8-9.
Bamboo shoots in spring blossoms bamboo, zhu Gen signs up for the bamboo shoot that come out, bamboo shoot blossoms again bamboo, circulate with this, have bamboo shoot year after year.
The growth of cicada lifetime process
The 6~7 month with annual cicada is met from aurelian become imago to be in next short number lays eggs in a few days, begin from egg, to the process that nymph lives in land base.
1, from cicada aurelian to cost off a skin, the foreleg with aurelian cicada is shown draw written complaint, imago comes out from inside empty shell when, it is OK firmly ground is hanged on the tree. Cicada is aurelian must vertical plane is right tree body, this are very important. This is for imago the normal growth of two wings, otherwise wing misshapes with respect to meeting development. Cicada regards a foundation as aurelian crust, free oneself by oneself slowly, resemble climbing from inside a pair of armature.
2, cicada has a few short weeks only in the life after decay, broken emerge and go out. When them the meeting before on one's deathbed is delivered of the egg of next generation, larva grows in underground through time of a few years, climb a ground then next, cultivate on, decay. Become true cicada by ground cicada.
3, cicada comes out from ground run the drilling tool into the well when at noon is the hottest commonly, just came out from the ground at first when, lesser, when midday, sunshine is very strong, young cicada blackens gradually in the color on bush, wait for completely black hind but volant fly away. Have so different at 2 o'clock, is time, everybody is hep is dusk or in the evening, and in Xinjiang it is midday; There is housing when the cicada of another bit of Xinjiang comes up out of land.
The grain of visible arteries and veins on blade. By perforative the machinery of the vascular bundle inside mesophyll or vascular bundle and its periphery organizes composition. Be a leaf be defeated guide organization and supportive structure. It offers moisture and inorganic salt, output to shut production solely for the leaf on one hand, propping up blade again on the other hand, make can extend at the space, the physiology function that assures a leaf goes on wheels. Vein is shown in blade regular ground distributings, be linked together through the dimension tubing inside Xie Bing and bine.
The permutation of vein means calls foreword of arteries and veins, basically have 3 kinds: (1) netted veins foreword, have apparent advocate arteries and veins, advocate cent of arteries and veins gives side arteries and veins, side arteries and veins again and again ramose, form thready pulse, the smallest thready pulse is coadjacent web shape. It is the characteristic of foreword of dicotyledon arteries and veins. The way that by side arteries and veins cent gives is different, still can divide it is a foreword of shape arteries and veins and foreword of palm shape arteries and veins, former wait like oleander, pear and loquat; Latter is like castor-oil plant, pumpkin and grape to wait. (2) foreword of parallel arteries and veins, most advocate arteries and veins is not remarkable, each nervation from blade base the ministry is roughly parallel extend till Xie Jian again confluent, it is the feature of endogen nervation. Wait like wheaten, banana, palmy He Yuzan. (3) foreword of bifurcate arteries and veins, the 2 forked form that each nervation all submits multistage are ramose, it is order of a kind of when gymnospermous ginkgo has more original arteries and veins, in fern of general consist in.