First, natural communication.
When the sunflower seeds are fully mature, the fruit will fall off the plant and then spread the seeds.
Second, the wind spreads.
Sunflower seeds are light, can be spread further by the wind, and then take root and sprout.
Third, hydraulic transmission.
If the sunflower grows near the water source, the seeds will fall into the water when they mature and float to other places by the buoyancy of the water.
Fourth, animal transmission.
Squirrels feed on the fruits of plants, and they also like to pick the seeds of plants and take them away for storage. Sunflower seeds will go to other places with this behavior of squirrels, and some fallen seeds will take root and sprout in the process and grow on the ground.
Sunflower sunrise reason:
Sunflower, named after the tip of its young plant in the early growth stage and the young disc in the middle growth stage, will obviously rotate with the sun.
From the biological science, this paper analyzes the reasons why sunflowers are sunny: the sunflower disk is sunny from germination to flowering, and its leaves and disk follow the sun from east to west during the day, but not immediately. Botanists have measured that its disk direction is about 12 degrees behind the sun, which is 48 minutes.
After the sun goes down, the sunflower tray slowly swings back, facing east at about 3 am, waiting for the sun to rise.