高视创意网为您找到15155个自然科普相关的图片。
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Curious children in protective glasses following their teacher
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植物的插图。旧图像
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Emc2 written on virtual screen by science teacher or student in class.
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喇叭动物作为水滴中的微观浮游动物
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teacher in science class with pupils
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植物主题。老照片
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Two young cute girl holding filled test tubs
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丝状藻类是形成可见的长链、线或细丝的单个藻类细胞。
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Kids stacking glass samples with beetles on a pile
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水绵是显微镜下观察的丝状轮藻绿藻属
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Elementary school teacher following her children during experiment
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蕨类植物的插图。韦克菲尔德及其附近的蕨类植物和蕨类植物盟友 1862
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Cheerful experimenters enjoying results of their work
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植物的插图。复古图片
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Children playing with test tubs filled with colored reagents
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化石的插图。旧图像
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Renewable Energy Works. Science Class with Kids Listening
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zoom 微生物藻细胞
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Generator Works. Science Class, Kid Raises Hand with Answer
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一只蚂蚁的细节
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Young African American boy carrying big test tube
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在显微镜下近距离拍摄小 ramshorn 蜗牛。
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Renewable Energy Works. Science Class with Kids Listening
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boys with teacher in chemistry class
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水滴中的微小硅藻
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Renewable Energy Works. Science Class with Kids Listening
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化石的插图。旧图像
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Renewable Energy Works. Science Class with Kids Listening
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水中的球形绿藻团藻
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Cheerful male Teacher Explaining Something to a Group of Young Students Inside the Classroom.
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版纳 Glutinosus 幼虫
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Renewable Energy Works. Science Class with Kids Listening
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100x 水滴中的观赏藻类 Micrasterias
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Renewable Energy Works. Science Class with Kids Listening
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根霉属是一种常见的腐生真菌。显微镜下的根霉面包霉菌。
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preschool children in classroom
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Young scientists helping their teacher with reagents
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水绵是一种丝状轮藻绿藻，浮游植物。
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Generator Works. Science Class with Curious Kids Listening Attentively
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植物的插图。旧图像
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preschool children at lesson
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鸟的插图。澳大利亚的鸟类，补充。 1848年
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Pupils taking notes
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化石的插图。旧图像
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Elementary School Physics Teacher Uses Interactive Digital Whiteboard to Show to a Classroom full of Smart Diverse Children how Renewable Energy Works. Science Class with Kids Listening
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zoom 微生物藻细胞
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Cheerful male Teacher Explaining Something to a Group of Young Students Inside the Classroom.
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鸟的插图。不列颠群岛鸟类的彩色人物
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显微镜下的螺旋藻Spyrogyra
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Smiling African American being proud of his work during experiment
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动物的插图。复古形象
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Ginger girl pointing on wind turbines attracting attention
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红尾彗星
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Happy kids at elementary school
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水绵是显微镜下观察的丝状轮藻绿藻属
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岩石上的海蛞蝓海蛞蝓
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水滴中的微小硅藻
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女人修理玻璃板。一张干花的照片。用蒂芙尼技术在彩色玻璃中使用植物标本室创建框架的大师班。
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棕榈树。复古和旧图像
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昆虫和植物的插图。英国昆虫学。 1823-1840
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显微镜下的水生植物细胞
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显微镜下暗场中的放射虫
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自然背景的含羞草猪。含羞草，俗称巨敏感树，（pigra，懒惰，慢），是豆科含羞草属的一种。
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化石的插图。旧图像
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Cyathea smithii。南极航行的植物学伦敦 1844
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Pseudococcidae 特写动物 野生动物
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水绵是显微镜下观察的丝状轮藻绿藻属
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沙滩草叶横截面 100 倍
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美丽的变焦微生物藻类细胞
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蘑菇的插图。旧图像
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显微镜下的水生植物细胞
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植物的插图。复古图片
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米尔福德峡湾的蕨林
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野生蝾螈。
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化石的插图。旧图像
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Phacus 是显微镜下用于教育的 Euglenozoa 门的单细胞。
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zoom 微生物藻细胞
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从卵中孵化中国睡鱼 Perccottus glenii
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Raorchestes anili, 瓦拉帕莱, 泰米尔纳德邦, 印度
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生态实验室，新能源！
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黑色放大镜增加植物落下的绿色黄色叶子
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叶子像 Katydid，Tettigonidae 家族，在印度马哈拉施特拉邦 Kolhapur 的 Amba 的背视图。
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来自百科全书的古代插图。
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深色背景的绿叶芽
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格莱切尼亚。南极航行的植物学伦敦 1844
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显微镜下的红眼鞭毛
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植物的插图。复古图片
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蜗牛在深色背景上的宏观照片
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兰花花白色背景
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康德，巴伊亚州/巴西-2013 年 10 月 6 日：玉米种植园被昆虫虫 (Leptoglossus zonatus) 侵扰。农业害虫，特别是在谷物种植园。 *** 本地字幕 ***
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用于植物学教育的光镜下植物茎的横截面。
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植物的插图。旧图
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寒武系 Pikaia 鱼
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微观生活。显微镜。单细胞动物。生物体。通过显微镜观察。动物生活。显微镜下的微观轮虫或轮虫，淡水底栖生物过滤水。通过显微镜看到的微观生命。
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森林凤梨树蛙，Osteocephalus cabrerai
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鸟的插图。澳大利亚的鸟类，补充。 1869
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树蕨（澳大利亚、新西兰）
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动物的插图。旧图像
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绿色植物组织培养。
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SAUTERELLE tettigoniidae
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黑色上的大型秋季女士发辫兰花 - Spiranthes spiralis
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横断面的孤挺花种子胶囊 100x
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珊瑚礁
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100x 水滴中的观赏藻类 Micrasterias
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蘑菇 森林 自然 季节 关闭
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藻类的插图。旧图像
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绿叶特写
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藻类的插图。旧图像
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动物的插图。复古形象
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关闭美丽的跳蛛 - 图库图片
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来自百科全书的古代插图。
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蕨类植物的插图。旧图像
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绿色植物组织培养。
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显微镜下水中细长的绿藻
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喇叭动物作为水滴中的微观浮游动物
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团藻是叶绿素绿藻或浮游植物的多系属。它们生活在各种淡水和海洋栖息地
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