Sunflowers close up their petals in the evening as a part of their circadian rhythm. They track the sun during the day to maximize sunlight absorption for photosynthesis. When the sun sets, they close up their petals to conserve energy and protect their reproductive parts from potential damage.
sunflower
"Optimizing Sunflower Growth: The Effects of Different Soil Types" "Harnessing Sunflower Power: Investigating the Efficiency of Sunflower Oil Extraction Methods" "Sunflower Secrets: Exploring the Relationship Between Sunflower Growth and Light Exposure" "Going Green with Sunflowers: Investigating Phytoremediation Potential in Contaminated Soil"
This will depend on the cultivar of the sunflower.
It is Helianthus annuus, the common sunflower.
A sunflower is a very special liquid.
Sunflower petals close up primarily in response to changes in light and temperature. This phenomenon, known as nyctinasty, helps protect the flower during the night and may aid in conserving moisture. By closing, the petals can also shield the reproductive parts from potential damage caused by cold or rain. In the morning, the petals typically open again to attract pollinators.
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.
If by "open up" you mean "bloom", then yes.
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).
The correct term is a Sea Star. The sea star bearing [up to] nine arms is called a "fragile star" and is also a close relative to the "sunflower star".
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".
headAnswer:First, the "Sunflower" is native to the Americas.The sunflower is comprised of many smaller flowers very close together, forming what is known as florets. These florets as a whole is called the head or flower of the sunflower. The florets, spiral forming the flower/head and can grow to as large as 15" (381mm) in diameter and up to 15 feet (4.57M) tall.
Up to the height of a house!