Your friend is allergic to pollen. What should you remind him? A. Play in the flower garden every day B. Wear a mask when going out C. Smell the flowers closely D. Touch the flowers often 相关知识点: 试题来源: 解析 B。解析:对花粉过敏出去的时候应该戴口罩,A选项每天在花园里玩、C选项...
Flowers serve as the reproductive organs of flowering plants (angiosperms), designed to facilitate pollination—the transfer of pollen from the male stamens to the female pistil. This process can result in fertilization, leading to the development of seeds. Flowers can vary greatly in appearance, ...
They spread pollen (花粉) among plants with flowers. This helps the flower produce seeds (种子) and fruit. Without pollinators, farms cannot make food. To do their study, Dr. Ryall’s team built some new areas. They sent some bad gas there. In these areas, they found that only 30...
What appears to be a large mosquito takes pollen from a beautiful flower. Copy-space to the left.,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
They spread pollen (花粉) among plants with flowers. This helps the flower produce seeds (种子) and fruit. Without pollinators, farms cannot make food. To do their study, Dr. Ryall’s team built some new areas. They sent some bad gas there. In these areas, they found that only 30...
Macairea radula (Melastomataceae) has two stamen sets, poricidal anthers, pollen as the main floral resource and flowers visited by vibrating bees, a set of traits related to heteranthery. However, tristyly, which also predicts stamens differences within the same flower, has been proposed as...
They spread pollen (花粉) among plants with flowers. This helps the flower produce seeds and fruit. Without pollinators, farms cannot make food. To do their study, Dr. Ryall’s team built some areas. They sent some bad gas (气体) in there. In these areas, they found that only 30% ...
Pollinatorsareimportant.Theyspreadpollen(花粉)amongplantswithflowers.Thishelpstheflowerproduceseedandfruit.Withoutpollinators,farmscannotmakefood.Weallneedpollinators.Todotheirstudy,Ryalls'teambuilteightareas.Then,theypiped(吹送)nitrogenoxide(氧化氮)andozone(臭氧)intosixoftheseareas.Theothertwoareashadnormal(...
They spread pollen (花粉) among plants with flowers. This helps the flower produce seed and fruit. Without pollinators, farms cannot make food. We all need pollinators. To do their study, Ryalls’ team built eight areas. Then, they put nitrogen oxide and ozone (氧化氮和臭氧) into six ...
Pollinators are important.They spread pollen (花粉) among plants with flowers. This helps the flower produce seed and fruit. Without pollinators, farms cannot make food. We all need pollinators. To do their study, Ryalls’ team built eight areas. Then, they piped (吹送) nitrogen oxide (氧...