大图:6000× 4000 像素·50.8 cm × 33.87 cm·300dpi·JPG 中图:1000× 667 像素·35.28 cm × 23.53 cm·72dpi·JPG 小图:500× 334 像素·17.64 cm × 11.78 cm·72dpi·JPG 了解更多 图片套餐 常见问题: 商业用途| 授权| 授权书| 发票| 合同问题 ...
New Zealand floranectarpollensurplus honeythreatened florapollinatorsspecialisationA review of the literature indicated that honey bees collect pollen or nectar from 224 native plant taxa including 188 species, 119 genera, and 67 families in New Zealand. However, only 12 families contain the majority ...
TIFF大小 29.5MB 格式JPG 编辑图片 以图搜图 大图:3936×2624像素·33.32cm ×22.22cm·300dpi·JPG 中图:1000×667像素·35.28cm ×23.53cm·72dpi·JPG 小图:500×334像素·17.64cm ×11.78cm·72dpi·JPG 了解更多 图片套餐 常见问题: 商业用途
When bees collect pollen and nectar they brush against the flower. Pollen, plant male gametes, also sticks to the bee. When a bee goes to another flower pollen can brush off on the stigma (the female organ). This transfers pollen from one plant to another. Transferring pollen to the flowe...
pollen. Adult worker bees collect pollen as sustenance for both adult and larval bees -- it contains protein and other nutrients necessary to their survival. While foraging for nectar and pollen, bees inadvertently transfer pollen from the male to the female components of flowers. The pollen they...
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...
A. pollen and nectar B. only nectar C. only pollen D. water and nectar 相关知识点: 试题来源: 解析 A。解析:蜜蜂用花粉和花蜜(pollen and nectar)来制造蜂蜜。选项B,只用花蜜(only nectar)是不准确的;选项C,只用花粉(only pollen)也是错误的;选项D,水和花蜜(water and nectar)不能用来制造蜂蜜,所以...
But it appears to be more complicated than that–in many plants the allelochemicals are either concentrated or diluted in the nectar and pollen (relative to the amount in the sap), or of different composition than in the leaves. So plants appear to be able to regulate their toxicity to ...
Bees carry nectar and pollen to the hive. Bees collect nectar and pollen in the hive and carry Author credit line ID85947567 ©Aleksandr Klipanov | Dreamstime.com Image keywords Bees Carry Pollen Hive Nature Video Summer Spring Motion
In the test 20 bees collected both pollen and nectar. The results showed that the bees were more likely to search for pollen and nectar on the coloured flowers they had learnt to associate with the treats and less likely to check out the flowers which they had previously been trained to as...