Seed production is how flowering plants reproduce and ensure the survival of the species. Plants have evolved a variety of ways of dispersing their seeds so that they can spread over a wide area and away from the parent plant.
Seeds need to spread away from the parent plant so when they grow they do not have to share water and light. Different flowering plants have evolved many different ways to ensure that their seeds are dispersed. These include:
Being carried by the wind:
Carried or eaten by animals:
Floating on water:
Exploding from a pod:
Animals disperse seeds in more than one way. Look at the picture of the burdock seed. The hooks have evolved so that the seeds are spread in which way?
Some animals help with seed dispersal in a different way. What behaviour, shown by squirrels and jays, helps with seed dispersal?
Which TWO of these explains why plants produce fruits?
Callie and Tom want to create the correct conditions for their sunflower seeds to germinate (to begin to grow.) Callie says that the seeds need water, warmth and soil. Tom says that the seeds only need water and warmth to begin to grow.
Who do you think is correct?
Callie and Tom know that the root grows first, followed by the stem. When the leaves grow, the plant needs warmth, water and what else so that it can produce its own food? Tick TWO boxes.