Seeds

Seeds are formed from ovules after fertilisation. The ovulve develops into a seed, each containing an inactive embryo plant. The embryo has a food store which it uses when it starts to grow. The ovary develops into a fruit around the seed and attracts animals.

Seeds can be dispersed in four ways. They can be blown away and carried by wind. Sycamore and dandillion are dispersed this way. Seeds can be eaten by animals and then dispersed through animal droppins. For example the burdock plant has little hooks which attach to animals skin. Seeds can be dispersed via explosions, like the pea plant. And finally they can be dispersed via drop and roll. This is where a heavy seed (like a horse chesnut) falls and hits the ground. This then breaks the shel as the seed rolls out.