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...
tepal- an undifferentiated part of a perianth that cannot be distinguished as a sepal or a petal (as in lilies and tulips) gynostegium- the crown of the stamen in plants of the genus Asclepias chalaza- basal part of a plant ovule opposite the micropyle; where integument and nucellus are...
Suppose all seed plants were homosporous, what effect would that have on their reproduction? 1. What are two different ways that random mating can be accomplished? 2. Which group of plants use pollen for reproduction? Where does fertilization usually occur? Define sexual reproduction.Explore...
A stem is the part of the plant that connects the shoots to the roots. The monocot stem is characterized by its single vascular bundle with parallel-fibered secondary xylem arranged in bundles surrounding the central phloem's central cylinder in each node....
Tulip: Anthers (male) are the dark, fuzzy parts full of pollen just outside the pistil (female) in the center. But this one (along with having the flu) left my palms sweating: Marigold: the ovary is about the only part that’s obvious, since the anthers and pistil are enrobed in ...
Inner part of yellow lily with pestle and stamens covered with brown pollen horizontal photo,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、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、
Tibbs attempts to count the puppies with collars amidst the 99 puppies in the room. I knew the tune by heart when the original screened on the “Mouse Club” rerun, and instantly recognized, “That was what that strange cartoon was.” For a treat, listen to a more complete version of ...
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