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Because the purpose of the flower is to faciliate reproduction. Once the flower' s eggs get fertilised the flower dies.

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10y ago
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13y ago

The purpose of the flower is to facilitate reproduction. Once reproduction has taken place, it is no longer needed. The plant needs to use the energy elsewhere.

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Q: Why do the petals on a flower fall off after fertilisation?
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Related questions

What happens to the petals on a flower when the seed develops?

They wither and fall off


What are signs of a bad flower?

When it is wilting, browning, becoming crunchy(petals) and when the petals start to fall off.


Flower petals fall off?

All flowers lose their petals at some point.


How is a flower compared with the constitution?

unnecessary factors can be removed as petals fall off, and new amendments can be added as new petals grow.


Why do flowers stay fresh in sugar solution?

Because the flower petals don't fall off.


What happens to the petals of the flames of the forest flower once the fruit starts to develop?

they will wither and fall off


What happens to the male parts of the flower after fertilisation has taken place?

They fall off taking away the plant's manhood and pride.


The fruit absorbs the petal of its flower?

No, not rormally, in most cases the petals fall off before the fruit develops.


Why are petals useful parts of the flower?

because then they will fall off more easily in the wind and be able to pollinate and grow more flowers because then they will fall off more easily in the wind and be able to pollinate and grow more flowers


If you take all the petals off a flower can the flower still make seeds?

yes, the petals only act as an attractant to pollinators, if the petals were removed the flower could still be pollinated


Where do find the seeds that are inside of a rose?

After the petals fall off the seed, called a rose "hip" develops in the stem behind where the flower was.


What changes in the flowers after fertilisation?

Petals drop off and the ovary becomes the fruit and ovule becomes the seed