百度试题 结果1 题目The part of a flower that contains the pollen is___. A. petal B. stamen C. pistil D. sepal 相关知识点: 试题来源: 解析 B。花的雄蕊包含花粉。花瓣是 petal;雌蕊是 pistil;萼片是 sepal。反馈 收藏
新东方在线考研特别整理各个单词的用法、例句以及怎么读?方便同学们快速掌握! pollen的解释 n. 花粉 v. 授粉给 pollen的例句 There is a highpollencount in the air. 空气中有很高的花粉计数。 Anther is a part of a flower that contains thepollen. 花药是花的雄蕊上带花粉的部分。 罗马不是一日建成的。
Anther is a part of a flower that contains the pollen. 花药是花的雄蕊上带花粉的部分。 There is a high pollen count in the air. 空气中有很高的花粉计数。 Stamen is in the middle of a flower and may produce pollen. 雄蕊长在花的中央,能产生花粉。
When a bee lands, brushing the flower's long trigger hairs, a floral structure slams a pollen mass onto the bee's back. Its power comes from the sudden release of a bent strip of tissue, called a stipe, attached to the pollen mass, Fulop reported July 27. Bent tissue strip gives orc...
英英释义 a powder produced by the male part of a flower , which is carried by insects or the wind and causes the female part of the same type of flower to produce seeds 发音 例句 1. Hummingbirds have discovered that nectar and pollen are very nutritious. 蜂鸟发现花蜜和花粉是很有营养的...
pollen pollen的解释 n. 花粉 v. 授粉给 pollen的例句 There is a highpollencount in the air. 空气中有很高的花粉计数。 Anther is a part of a flower that contains thepollen. 花药是花的雄蕊上带花粉的部分。
pollen [ˈpɒlən] 以下由轻松背单词网站提供 单词级别 第9级 基本释义 n.[植]花粉 英英释义 a powder produced by the male part of a flower , which is carried by insects or the wind and causes the female part of the same type of flower to produce seeds ...
It makes sense that wind-pollinated plants would make a lot of pollen, to increase the chance of finding a female, but even in self-pollinated plants, such as tomato, each anther makes many more pollen grains than are needed for the available females in that flower. Pollen competition (i...
To gain a deeper understanding of the flowering pattern and reproductive characteristics of Epimedium sagittatum, to enrich the research on the flower development of E. sagittatum and its reproductive regulation, and to screen the methods suitable for the rapid detection of pollen viability of E. ...
In a flower, the part that holds the pollen is the ___. 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...