This is called pollination. When the pollen lands on the stigma it travels down the style towards the ovary. Once the pollen reaches the ovary it hopes to find an ovule to attach to. This is ...
Insect-pollination of flowering plants is responsible ... Looking for more KS3 resources? This short video clip looks at reproduction in various plants and animals using beautiful wildlife footage ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果