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For pollen grains, the answer is easy - not all pollen will reach another flower, it has to depend on wind or an animal vector, and some may be lost to rain or being brushed off by a non-pollinating organism that happens to come in contact with the pollen. So the more pollen produced, the better the chance that some will reach its intended target.
For the number of ovules, this isn't well known. It's often thought to be related to the primitive or advanced development of the plant species. As a plant becomes more "advanced", the number of parts generally decreases, often through fusion of the parts.
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Why doesva flower have so many pollen grains than ovules?
flowers produce more pollen grains because the anther makes the pollen it then the stigma collects pollen and the petals of flowers atract insects or birds.
Why do flowers have so many pollens grains and ovules?
For pollen grains, the answer is easy - not all pollen will reach another flower, it has to depend on wind or an animal vector, and some may be lost to rain or being brushed off by a non-pollinating organism that happens to come in contact with the pollen. So the more pollen produced, the better the chance that some will reach its intended target. For the number of ovules, this isn't well known. It's often thought to be related to the primitive or advanced development of the plant species. As a plant becomes more "advanced", the number of parts generally decreases, often through fusion of the parts.
A conifer that has both male and female cones will produce many more pollen grains than ovules How does that help the conifer reproduce?
The wind usually scatters the pollen grains of conifers. The likelihood of pollen reaching female cones is increased when there are large amounts of pollen.
What are the reproductive structures of genosperms?
Most Gymnosperms are diecious with the male and female reproductive organs on different plants. The male "flower" produces pollen and the female "flower" contains the ovary. Many female gymnosperms produce cones that house the fertilized eggs until the seeds are mature.
How many pollen grains does the flower produce?
More than one, the number depends on the mode of pollenation.
When the pollen is mature the opens releasing the pollen?
When pollen is mature, the anthers of the flower release it into the air or onto visiting pollinators. This process is often triggered by environmental factors, such as temperature and humidity, which help to facilitate the release. Once released, the pollen can travel to other flowers, where it may fertilize ovules, leading to the production of seeds. This mechanism is crucial for the reproduction of many flowering plants.
Why do flowering plants produce less pollen than conifers?
A flower produces pollen for pollination, so it needs a large amount of pollen to increase the chances of a pollinator, such as a bee or butterfly, getting pollen on it to spread to other flowers when it comes in contact with the flower. Ovules are located inside the ovary of a flower. The ovary is what later becomes the fruit of the plant. The size of the fruit depends on how many ovules there are inside the flower. If there are five ovules, there will be five fruits, but each fruit will be smaller than a flower with only two ovules, and natural selection dictates that the larger the fruit, the more appealing it will be to any herbivores or omnivores that pass-by. So, based upon this information, it is a requirement for there to be fewer ovules than pollen.
How many seeds will produce Each fertilized ovule?
Each fertilized ovule typically develops into one seed. During the fertilization process, pollen grains fertilize ovules within the ovary of a flower, leading to seed formation. While multiple ovules can be fertilized in a single ovary, each ovule independently produces one seed.
The nucleus in each cell in the stem of a plant contains 32 chromosomes How many chromosomes are there in the nuclei of its pollen grains?
Pollen grains are produced via meiosis, which halves the chromosome number. Therefore, the pollen grains would contain 16 chromosomes.
Why do flowers produce so many pollen?
Flowers produce so much pollen to increase the chances of one grain managing to fertilise.
What happens when the pollen tube joins the ovule?
If The Pollen Tube Joins The Ovules They Will Have Fertilization And At The End After The Ovules Will Become The Seeds It Is One Or Many Seeds
What is pollen analysis?
Pollen grains are the microscopic male reproductive particles released from flowering plants. As these grains are vital for the survival of flowering species, evolution has ensured that individual species produce different types of pollen grains. Pollen grains are also made of a resistant organic material (sporopollenin) that means they are often remarkably well-preserved in sediments many thousands of years old.
