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Stigma of the flower
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∙ 12y ago
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Can any pollen fertilize any flower?
No. Plants need the pollen from another plant of the same species to reproduce.
Why do plants usually produce so many pollens grains?
Pollen is the male contribution to the seed. Many plants have evolved flowers to lure pollinators, e.g. bees or flies, to carry packages of pollen to the female parts of another plant of the same species to fertilize it and thus produce a seed and continue the genetic lineage. The plants that do not rely on attracting pollinators tend to rely on the wind to spread their male genetic code around, and the wind is a very haphazard messenger. The plant is more likely to be successful - for a pollen grain to land on the proper part of the proper species of plant - if the producer makes LOTS of pollen. Plus, pollen/sperm is relatively cheap from the plant's point of view. A useful analogy might be to imagine two people stuck on little islands wanting to send letters back and forth. Pollinators are like mailmen that travel back and forth... so you only need to write your letter once. Relying on the wind to carry pollen is like writing 500 letters, stuffing them into 500 bottles and tossing them into the waves with the hope that one might hit the right island by chance.
How much land does a biomass power plant need?
59% of land is needes
Do all plants need pollinators?
They can't. This is because their pollen cells have different numbers of chromosomes, and therefore reproduction cannot occur. In order for flowers to breed, the pollinator must have the same number of chromosomes in its pollen cells as the flower receiving the pollen.
Why plants need pollen and spore?
plants need spores pollen and seeds to reproduce
I need the definition of plant sperm.?
pollen
Can any pollen fertilize any flower?
No. Plants need the pollen from another plant of the same species to reproduce.
Why does a plant need stigma?
To receive and scrutinize the compatibility of pollen grains
Why is it good for a bee take pollen from a plant?
bees need pollen because they will make more hony so we can eat and so that is all:)
Where does the pollen need to be taken in order for a flower to make seeds?
The pollen must be taken from the stamen to its stigma in order for pollination to occur. The common method of pollination is when insects and birds try to get nectar or pollen from the plant.
Why do plants usually produce so many pollens grains?
Pollen is the male contribution to the seed. Many plants have evolved flowers to lure pollinators, e.g. bees or flies, to carry packages of pollen to the female parts of another plant of the same species to fertilize it and thus produce a seed and continue the genetic lineage. The plants that do not rely on attracting pollinators tend to rely on the wind to spread their male genetic code around, and the wind is a very haphazard messenger. The plant is more likely to be successful - for a pollen grain to land on the proper part of the proper species of plant - if the producer makes LOTS of pollen. Plus, pollen/sperm is relatively cheap from the plant's point of view. A useful analogy might be to imagine two people stuck on little islands wanting to send letters back and forth. Pollinators are like mailmen that travel back and forth... so you only need to write your letter once. Relying on the wind to carry pollen is like writing 500 letters, stuffing them into 500 bottles and tossing them into the waves with the hope that one might hit the right island by chance.
How much land does a biomass power plant need?
59% of land is needes
How does fertilisation occur in flowers?
Have you ever wondered what are all those bees and hummingbirds looking for inside the flowers. Well it is a sweet substance that the plant provides for them called nectar. The nectar is advertized by the petals. When the animal goes for the nectar, the flower passes on the pollen to it. That is why if you look carefully you´ll see a yellow dust all over them. That is the pollen. Since they will need to get more nectar, the animals go searching for another flower and during that process they transfer the pollen from flower to flower. The pollen is collected by the flower´s stigma and flows down the style and into the ovary were it will fertilize the ovule. Amazing!
Are wind pollinated flowers petals small?
Yes, wind pollinated flower petals are small, because they do not need to be showy to attract insects.
Do all plants need pollinators?
They can't. This is because their pollen cells have different numbers of chromosomes, and therefore reproduction cannot occur. In order for flowers to breed, the pollinator must have the same number of chromosomes in its pollen cells as the flower receiving the pollen.
How much land does a nuclear power plant need?
alot:)
Is one squash plant enough to produce or do you need two for pollination?
we need two plants, as the male and female plants are different.
