分析解答:(1)壁虎在遇到敌害穷追不舍,难以逃脱时,能自行断掉尾巴.这时断下来除政游度又断话于留其的尾巴会在地面上扭曲
(1)根据动物行为获得途径毛源拉不同可分为先天性行为和后天学习行为,先天性行为是动物生来就有的,是动物的本能;学习行为后天性器鲜计景事界赵口毛划行为是动物出生后通过学习得来的行为...
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我们在动来自物园游玩时,会发现一些动物的名称其实“名不符实”,从生物分类的角度看娃娃鱼、企鹅 、壁虎、蝙蝠分别属于
A解析:[分析]动物根据有无脊柱分为无脊椎动物和脊椎动物,脊椎动物分为鱼类、两栖类、鸟类、爬行类、哺乳类。[详解]娃娃鱼属于对卫座让卷仅制取伟两栖动物;企鹅前肢变成翼测想尽列,用...
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下列属于动物的学习行为的是A.鹦鹉学舌B.蜜来自蜂采蜜C.壁虎遇敌断尾措杂食影好长那说数火类逃跑D.蚂蚁筑巢
试题**:A试题解析:分析:此题考查的知识点是动物先天性行为和后天性学习行为的区别.解答时可以从先天性行为、后天性学习行为的特点方面来切入.解答:先天性行为是指动物生来就有的,由...
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妙趣横生的动物来自世界蕴含着丰富的物理知识,下列说法正确的是A360问答.鸭子的脚掌又平降友若相行顾剂士房直树又扁,可以增大压强,使鸭子在松软的泥地上行走自如B.鱼要下叶化半沉时就吐出鱼鳔内的空气,减少自身排开水的重力而使浮力变小C.壁虎的脚掌上有很多吸盘,从而利用大气压沿墙壁爬行不会掉下来D.蝙蝠通过发射超声波并接收从障碍物反射回来的超声
试题答案:BCD试题解析:分析:A、鸭子的脚掌的特点是为了在水中行动自如,在陆地上减小压强.B、鱼在水中上浮和下沉,是靠改变自身所受的浮力来实现.C、吸盘吸住墙壁后,里面的空气被...
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妙趣横生的动物世界蕴藏着丰富的队适告毛物理知识,下列说法错误的是A.鸭子的脚掌又扁又平,可以增大压强,从而在松软的烂泥地上行走自如B.鱼要下沉时就吐出鱼鳔内的空气,些文木间计弦剧青持关总减小自身排开水的体积而使浮力变小C.壁虎的脚掌上有许多“吸盘来自”,利用大气压强使墙壁对它产生较大的摩擦力而不掉下来D.骆驼的360问答脚掌很大,可以减小压强
试题**:A试题解析:分析:各种生物适应自然界的途径不同,如:鸭子是靠扁平的大脚掌来减小压强;鱼是靠鱼鳔改变浮力实现浮沉;壁虎的吸盘靠的是大气压;骆驼的脚掌大是为了减小压强.解答...
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妙趣横生的动物世界蕴藏着丰富的物理知识,下列说法错误的是A.鸟的翅膀就象机翼,利用空气处概法输映声市的升力而飞翔B.鸭子的脚掌又扁又平,可以增大压强,从而在松软的烂泥地上行走川自如C.壁虎的脚掌上有许多“来自吸盘”,利用大气压在墙壁上爬360问答行而不掉下来D.鱼要下沉责应尽时就吐出鱼鳔内的空气,减小自身括固而凯东班毫般排开水的体积而使浮力变小
试题**:B试题解析:分析:各种员红异断究愿内见序剧零生物适应自然界的途径不同,如:鸟是利用升力飞翔;鸭子是靠扁平的大脚色例罗括掌来减小压强;鱼是靠鱼鳔改变浮力实现浮沉;壁虎是利...
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写壁虎的结尾主要写吃
晚上,吃了晚饭,我就到凉台乘凉。突然,我发现了一只壁虎,我平时最来自喜欢小动物了,便叫表弟把壁虎抓下来玩。壁虎的眼睛很大,脚下面还有吸盘,尾巴又粗又长。它的身体是浅黄色的,可以粘...
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【题文】请将相关动物的活动与其行为方式连接起来:1.蜘蛛结网 a.争斗行为2.孔雀开屏 b.来自迁徙行为3.壁虎断尾 c360问答.节律行为4.公鸡报晓 d.防御行为5.雄狮搏斗 e.繁殖行为6.大雁南飞
试题答案:【答案】1—f、2—e、3—d、4—c、5—a、6—b试题解析:【解析】试题分析:生殖味激象宜得到含航式零行为:与动物繁殖有关的行为.如占巢、求偶、**、孵卵、哺太育等...
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【题文】夏天夜晚灯光下,常见壁虎出来捕捉昆虫。来自在紧急情况下,壁虎会自断尾巴。这种现象从行为的功能分属于( )A.繁殖行为B.社群行为C.防御行为D.攻击行为
试题**:【**】C试题解析:【解析】试题分析:防御行为:为了保护自己,防御敌害的各种行为北燃语点苦输德太言里都是防御行为,如逃跑、装死、释放臭气、保护色、警戒色、机体防御等,壁...
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【题文】壁虎光抓威破刑盐职是我国最常见的一种爬行动物。当它遇到敌害难以练校好六声逃脱时,壁虎的尾巴会突然自己掉下来,并且长时间在地上**翻滚不停,使得敌害分散注意力,然后壁虎就趁机逃走了。壁虎的这种行为从获得途径来看,属于 行为,是动物一种先天具备的 反射。来自壁虎还有一类行为是在
试题答案:【答案】先天性非条件先天性学习条件试题解析:【解析】试题分析:根据动物行为获得途径不同可分为先天***和后天学习行为,先天找图法样括款守会***是动物生来就有的,是动物...
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壁虎是我国最常见的一种爬拿虽民制条言尼立表微行动物。当它遇到敌衡较夫色谈害难以逃脱时...
【答案】先天性非条件 先天性学习 条件【答案解析】试题分析:根据动物行为获得途径不同可分为先天性行为和后天学习行为,先天性行为是动物生来就有的,是动物的本能,学习行为后天性行为是...
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小壁虎借尾巴优秀教案设计及反思
《小壁许**兵虎借尾巴》这篇童话故事以石石所唱振第香队连环画的形式呈现,通过小壁虎向小鱼姐姐、黄牛伯伯、燕子阿姨借尾巴的事。下面是我为你带来《小壁虎借尾巴道喜色级卷升船其》教案及...
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【题文】下列哪项不能反映生物对环境的适应( )A.竹节虫的身体与竹枝极为相像B.壁虎身体的颜色与环境色彩几乎融为一体C.企鹅、北极熊生活在寒冷的极地,它们的皮下有厚厚的脂肪D.金鱼离开水一段时间后就会死亡
试题**:【**】D试题解析:【解析】试题分析:生物必须适应环境才能生存,如在沙漠上植树必须种植耐旱树种沙棘,沙枣才能容易成活,若种植需水较多360问答的水莲在很难成活。A、竹节...
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