skip to main |
skip to sidebar
Some seeds are hidden in the ground as a winter store.
Some fruits have hooks on them and cling to fur or clothes.
Birds and animals eat the fruits and excrete the seeds away from the parent plant.
Seeds are dispersed in many different ways:
Wind
Explosion
Water
Animals
Birds
Scatter
Some flowers, such as grasses, do not have brightly coloured petals and nectar to attract insects.
They do have stamens and carpels.
These flowers are pollinated by the wind.
Pollen grains germinate on the stigma, growing down the style to reach an ovule.
Fertilised ovules develop into seeds.
The carpel enlarges to form the flesh of the fruit and to protect the ovary.
 |
| Flower |
A flower is pollinated when a pollen grain lands on its stigma.
Each carpel grows into a fruit which contains the seeds.
Flowering plants use the wind, insects, bats, birds and mammals to transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower.
Stigma
Style
Carpel (ovary)
Ovules (eggs)
Posts
