It begins when a pollen grain that carries the sperm cells lands on the top of the pistil, the female reproductive structure of a flower. The pollen grain then germinates into a tube that guides the ...

Seeds are dispersed in a variety of ways. The nucleus of the pollen grain passes through the pollen tube and joins with the egg cell inside an ovule in the ovary. Fruit comes from flowering plants ...

Honeybees along with 1,500 other insect species pollinate plants in the UK. Self-pollination: The pollen grain lands on the same flower it originated from. Cross-pollination: The pollen grain ...