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To attracted insects to pollinate them so that seeds will develope.
Rubye Mante
Wiki User
∙ 13y agoThis is natural. Once the sunflower has been pollinated and fertilized, all energy is devoted to growing the seeds. Since the petals are no longer necessary to attract pollinators, they die off.
Wiki User
∙ 14y agowell.... Sun flours seed cause the top of the main flowers to droop...
Wiki User
∙ 13y agoBecause it had been pollinated.
Saoirse Maher
Because it had been pollinated From the framed
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How is the structural adaptation of a sunflower useful to the plant?
Sunflower having Capetulum type of inflorescence is pollinated by insects. Since all the flowers are at one place formation of sepals and petals is reduced to pappus and lesser area having petals. Thus at minimum expense the attraction of insects is maximum to these plants.
What happens in pvz when you get all achievements?
you get the gold sunflower trophie
What are all the Pixie Hollow ingredients?
Oak Leafs Maple Leafs Ivy Rose Petals Daisy Petals Lily Petals Buttercup Petals Spider Silk Meadow Grass Sunflower Seeds Acorns Blueberries Dandelion Fluff Raspberries Pine Needles Snowflakes Honey Comb Twigs Truffles Blue Gems Yellow Gems Feathers and Bits of Metal.
How long does it take sunflower seeds to biodegrade?
Yes, sunflower seeds are biodegradable.... All things that come from plants are biodegradable.
Does petals have cells?
Yes. All flower petals, and all parts of plants are composed of cells.
Where in a sunflower are sugar molecules produced?
As in all plants in the chloroplasts in cells. Most of this happens in the leaves, but can occur in any green part of the plant.
What are edible seeds?
You can eat sunflower seeds from the sunflower.
Is the sunflower an endangered flower?
Not at all. Sunflower is cultivated in a large area for its oil.
Flower petals fall off?
All flowers lose their petals at some point.
Which flower have colorful petals?
all the flower.
Are all flowers with five petals poisonous?
no
Do all species of flowers have the same amount of petals?
Flower have widely varying numbers of petals.
