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Pollen needs to be able to be spread far and wide in order for the flowering plant species to both spread and remain robust. By being tiny and prickly, pollen particles can be carried on the wind, or become attached to the legs and bodies of pollinating insects such as bees, ants and flies.
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What is the difference between pollen and pollen grain?
Pollen refers to the microscopic reproductive structures produced by plants, while pollen grains are the individual units that carry the male gametes. Pollen grains are released from the anthers of flowers and are carried by wind or pollinators to fertilize the ovules of plants.
What are the characteristics of Hornfels?
Hornfels is a type of rock that is metamorphic. They usually have bands and fine grain, and can come in different colors, such as light gray and dark gray.
What is the general shape of a nerve cell How does this shape differ Grimm the shape of a sperm or a skin-?
Sperm and skin comes in different colors and shapes. Sperm and skin come in long elongated and branched at an end.
What technique is used by stigma to catch pollen?
The technique used by stigma to catch pollen is called adhesion. The sticky surface of the stigma allows pollen grains to adhere to it when they come into contact, enabling successful pollination to occur.
Why did all the pollen grains come from the same healthy plant?
The pollen grains came from the same healthy plant because they were produced by the plant's male reproductive organs, called anthers. These anthers release pollen, which is necessary for fertilizing the plant's female reproductive organs and producing seeds for reproduction.
What is the difference between pollen and pollen grain?
Pollen refers to the microscopic reproductive structures produced by plants, while pollen grains are the individual units that carry the male gametes. Pollen grains are released from the anthers of flowers and are carried by wind or pollinators to fertilize the ovules of plants.
Why do cells come in different shape and sizes?
Because they have different functions
If there is no female flower can the male flower turn into a fruit why?
The stamen in the flowers (the little things that poke out of the middle of the petals) have pollen on them and when bees come along they collect that pollen and as they fly along to different plants and flowers it drops the pollen which is what fertilizes the flowers.
How does the process of fertilisation take place in flowers?
the stamen[male] part of the plant creates a solution called pollen. a insect will come along and when it gets close some of the pollen rubs on the insect. then while it is looking around the flower some of the pollen rubs off on the pistil [female part of the plant]. pollen then go down into the ovary where the eggs are and then the eggs and the pollen combine to form seeds
How do you think pollen grains reach the pistil?
Pollen grains reach the pistil through pollination. The pollen grains are placed on the stigma of the carpal, and it transfers by wind, insects, built in mechanical discharge, and men. When the pollen lands on the stigma, it starts a series of chemical reactions that allow the pollen grain to produce a structure called the pollen tube. At the same time, the generative nucleus divides and produces two sperm nuclei. The pollen grain with the pollen tube and three nuclei is a mature gametophyte. The pollen tube works its way through the style of the carpal and touches the micropyte of the ovule. The sperm nuclei enter the embryo sac and fertilizes the egg and two polar nuclei, referred to as double fertilization. The fertilized egg develops into the immature seed plant, and the central cell develops into the endosperm, or food storage ares, of the seed.
Why are pollen grains different sizes?
Pollen grains come in different sizes depending on the plant species. Larger grains tend to be heavier and have a harder time being carried by wind, so they are usually found in plants that rely on insects for pollination. Smaller pollen grains are adapted for wind dispersal, allowing them to travel further distances.
Does pollen come from the male or female part of the flower?
Pollen comes from male part of the flower.
What is the most common shape of kite?
Kites come in many different shapes, but the most common shape is the diamond.
How many pollen grains are deposited into the female flower?
as many that stick to the stamen. it differs from plant to plant and it also depends on how many pollen grains stick to the insect that carries it. though once the pollen grain comes into contact with the stamen a pollen tube is created to reach the ovary. then two "sperm" come from this tube and one fertalizes the egg and one become the endosperm for nutrients for the egg/seed
What is the shape of a kite?
Kites come in different shapes, but the most common is a diamond.
How species differ?
the various of species come in different shape and sides that is how they differ
How do species differ?
the various of species come in different shape and sides that is how they differ
