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Does sperm cell grows out of a pollen grain?
i do think it does in humans but it might in plants.
How does pollen help a plant?
Pollen helps plants to fruit. -For instance without pollination we would have very few Almonds, blueberries, strawberries, melons, cucumbers, tomatoes and many others. Pollination of plants is critical to human survival.
Grows from the pollen grain to the ovule?
Pollen tubes grow from the pollen grains to the ovules. Lipids on the surface of the stigma stimulate growth of the pollen tubes. Self sterile plants prevent themselves from growing seeds by not creating these lipids.
How might pollen be carried from the anther to the female part of the flower?
To provide male gametes for gametic union of male and female gametes in order to have a new embryo and its endosperm.
Why might a plant not produce trichomes?
Trichomes can act as a pest deterrent. Plants that do not attract pests might not grow trichomes. If a plant that usually produces them fails to do so, it could be due to not enough light, nutrients, or water. The intensity and color spectrum of light has a lot to do with trichome development, especially in a plant like marijuana.
Does sperm cell grows out of a pollen grain?
i do think it does in humans but it might in plants.
How might having the anther atop a tall filament make it more likely plants will be pollinated?
The anther makes the pollen I think, but you might wanna check though.
How might having the anther atop a tall filament make it more likely that plants will be pollinated?
The wind blows the pollen away.
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.
Why might some seeds not grow into new plants?
Because it might not have enough seed minerals to produce a brand new seed.
Can a plant survive without flowers?
No. Have you seen the bee movie, it is all about pollen and how the bees save the flowers again, it's really childish but good. Flowers do not need pollen to sustain themselves, but they need it to reproduce and make more flowers. The flower is the reproductive part of the plant.
What might happen in a lake where plants and algae are growing?
Plants and algae can produce a slimy substance in a lake. Blue-green algae is the most dangerous type of algae for a lake to have because it can produce toxins.
What might cause solar power plants to produce less energy?
At night or when no light in the day time.
In some plants the pistils don't form until a few days after the stamens do how might this plant keep a plant from self-pollinating?
For a flower to be pollinated, pollen from an anther (which is located at the top of the stamen) needs to reach a stigma (at the top of the pistle.) Some plants are genetically capable of pollinating themselves if their own pollen reaches their own stigma; some plants are not capable of self pollination under any circumstances. For plants that can genetically self pollinate, but would prefer not to, they can avoid this by having their pistil and pollen/stames mature at different times. If the stamens mature first, the pollen will be dispersed by animals or wind or whatever dispersal mechanism it relies on. Then by the time the pistil is ready to be pollinated, there is no pollen left in that flower to land on the stigma.
What is the meaning of agents of pollination?
In short, that is a reference to bees and small birds. Plants need to be pollinated so they can produce fruit/seeds. A plant contains a pistil and/or a stamen. Genetic material has to be carried from the stamens to the pistils. Sure, the wind can do some pollination or plants might pollinate themselves when they are bumped. But generally, it takes some creature to carry the pollen between plants. So that is where birds and bees come into the discussion. Bees, related insects (hornets, wasps, etc.), and small birds carry pollen between plants. This is how it must be done because a tree or other plant cannot simply get up and walk over to another plant of the same type and mate with it.
What is polinators?
Transfer of pollen grains in seed plants from the stamens, where they form, to the pistil. Pollination is required for fertilization and the production of seeds.
Which plants do not have a flower?
Male flowers do not produce seeds.When plants have specialized male and female flowers, the male flowers only produce pollen. Only the female flowers produce seeds.Other reasons why a flower might not produce seeds:The flower may look all right but be flawed or underdeveloped.Over-specialized plants may depend on only one agent to carry their pollen. If that insect or bird or other animal disappears from the area, all those flowers will bloom and wither without producing any seeds.Some flowers don't produce seeds because the plant is sterile. When botanists cross-breed plants, the hybrids sometimes end up with odd numbers of chromosomes and the plants cannot reproduce - but they can flower.
