If by "open up" you mean "bloom", then yes.
a rose is more like a circle shaped object meanwhile the sunflower is like all spread out and open
They were never "invented". Sunflower seeds are just that, sunflower seeds. Seeds that contain the genetic makeup up sunflowers that will then germinate in the soil to become a sunflower which will make more sunflower seeds. The question "When did people begin eating sunflower seeds?" is another topic
The sunflower is very tall and its really long roots to absorb up the water.
The logical answer is that it looks like a sunflower because that's what it becomes.
Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds.
The average size of a sunflower is 2.5 meters (about 8 feet).
Up to 1,000 seeds can be produced from one sunflower head. Some may produce more or less depending on the exact sunflower.
No. Sunflowers are a plant. At least one company has come up with a beverage made from the seed kernels and they label it a "sunflower beverage".
Well you open the bag of sunflower seeds and feed them to the cockatiels. They will then eat them.
Up to the height of a house!
sunflower ms
The freshness of sunflower seeds can last up to 6 months if stored in a cool, dry place.