ASometime in the early Cretaceous period of the Earth's history, hunting wasps of a certain type became bees by adopting a vegetarian diet: they began to rely more and more on the pollen of plants as a source of protein for themselves and their offspring, as an alternative to insects. I...
Papilio demoleus collects pollen from a flower in Yangon, Myanmar, July 21, 2017. (Xinhua/U Aung)
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When bees visit flowers, they collect pollen(花粉).Without bees, polluting flowers from one flower to another, many plants can't have seeds or grow fruits or vegetables.In recent years, scientists have noticed a sharp drop in bee numbers in the world. What has happened? In bees' hives ...
Bees collect nectar from flowers and turn it into ___. A. honey B. pollen C. wax D. propolis 相关知识点: 试题来源: 解析 A。蜜蜂从花中采集花蜜并将其转化为蜂蜜。选项 B“pollen”是花粉;选项 C“wax”是蜂蜡,不是由花蜜转化而来;选项 D“propolis”是蜂胶。反馈...
The worker bees collect nectar and pollen from flowers and bring it back to the hive. Then they make honey! Now, you hold the frame. There are the bees. Anna: There are so many! And they are so busy! Now I know why we say, “busy as a bee!” Caroline: Good job, Anna. Anna...
Further, pollen foragers consumed more and different kinds of pollen than nectar foragers. Pollen consumption at flowers is thus unlikely to be purely incidental or to substantially benefit workers nutritionally. Instead, consuming pollen directly from flowers likely allows foragers to quickly assess ...
After collecting nectar and pollen from many different flowers, bees fly back to their colonies. They regurgitate nectar, mixed with enzymes, and expose the mixture to the air for several days, creating honey. This honey is used to feed the colony. Pollen is mixed with nectar to form a pro...
pollen and flowers C. bad gns und smel D. air pollution and pollinators 相关知识点: 试题来源: 解析 D【文章大意】本文主要讲述了污染对传粉者的影响。55.【答案】D【解析】题干意思是“这篇文章主要关于什么”,A、蜜蜂和蝴蝶;B、花粉和花;C、风和气味;D、空气污染和传粉者,通过阅读文章以及文章大意...