A. stamen B. pistil C. sepal D. ovary 相关知识点: 试题来源: 解析 A。解析:本题考查花朵结构。雄蕊(stamen)是花朵中承载花粉的部分。雌蕊(pistil)是接受花粉的部分,萼片(sepal)主要起保护作用,子房(ovary)是雌蕊的一部分,主要与结果相关,所以B、C、D错误。反馈...
For reproduction to succeed, the pollen must be transferred from the male part of a flower to the female part. 为了成功繁殖,花粉必须从花朵的雄性部分转移到雌性部分。 习题: They do this by pollinating the plant, which means to transfer pollen. Many plants depend on pollination for reproduction....
A flower is a special part of the plant. Flowers are also called the bloom or blossom of a plant. Inside the part of the flower that has petals are the parts which produce pollen and seeds.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商
Pollination occurs when pollen is moved within a plant's flower or carried to another flower. This is how the plants reproduce. For reproduction to succeed, the pollen must be transferred from the male part of a flower to the female part. (1) Honeybees play an interesting and important rol...
Bees are a big part of the life cycle of plants, carrying pollen from one flower to another and allowing plants to produce their frequently yummy output. But with bee populations on the decline, what can take their place? How about soap bubbles(肥皂泡)? It may sound fantastical. But Eijir...
- The stamen consists of two main parts: the anther and the filament. The anther is the part that produces pollen. 3.Identifying the Carpel: - The carpel (or pistil) is the female reproductive part of the flower. It consists of three parts: the stigma, style, and ovary. ...
It's a neat wayof avoiding any chance of being fertilized by itsown pollen. The perfume it produces on its firstevening attracts beetles. They bring with thempollen from other lilies, so this flower is aboutto be fertilized. But then the lily closes itspetals. The beetles will be held ...
An allergy (过敏反应) is a strong reaction to a substance. Many things can cause allergies. The most common cause is pollen (花粉) which is usually produced by trees in the spring grasses in the summer and weeds in the fall as part of their reproductive process. Other causes include orga...
Each part of Lotus Pink flower breed (Nelumbo nucifera Nelumbium speciosum Willd. Nymphaea nelumbo). Leave petal sheath pollen and fruit. ,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体
This animation trail may be slightly less comprehensive than some others, as I’m not sure if I can recall every early instance where a flower came to life in early cartoons. As likelihood of overlap on past trails of romance will also unnecessarily heighten by trying to catalog every instanc...