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What is a plant stigma?
hi there the male parts of the plant: anther, filament, pollen female parts: stigma, style, ovules, ovuary first the pollen from the anther, which is the top stem, is rubbed on a pollinator or blown by a wind, or moved by a human. then it goes to the stigma, which is a sticky stem made to catch pollen. as soon as the pollen sticks, it travels down to the style. the ovules is the place where the eggs are. the pollen, which has the male sex cell, joins with the ovuary, the unfertilized female egg. then it creates a seed as the petals fall, since the petals are no longer needed to attract pollinators. the anthers and filament (which are the stems) fall off as well. all is left is the stigma, style, and ovuales, and the growing seeds. the little bumps on the style (the stem that holds the stigma) are the seeds
What happens when a magnet is moved alongside a wire?
the electrons in the wire begin to flow
Why was Robert Brown astonished to see that pollen from a dead plant moved around in water?
Robert Brown was astonished to see that pollen from a dead plant moved around in water because it exhibited constant, random motion, a phenomenon later known as Brownian motion. This unpredictable movement suggested that even inanimate particles were influenced by unseen forces, leading him to ponder the nature of matter. His observations laid the groundwork for later developments in atomic theory and the understanding of molecular motion.
What is it called when pollen is moved from one flower to another?
well, the name of this movement is called pollination as you can see. If you think the movement of pollens is called nectar then u are wrong there because nectar is the liquid that comes from the plant so that is why it is wrong.
Which activity that shows matter composed of particles?
Smashing atoms in an accelerator proves that atoms are made of smaller particles which themselves are made of smaller particles. An accelerator is needed to reach the minimum energy level required to do this though, atoms don't just simply disintegrate themselves, unless in a fission nuclear reactor. Einstein proved that atoms exist when he studied Brownian motion, which is what happens when you put grains of pollen in water. The move around without any apparent objected causing it. Einstein proved that the grains moved because atoms were causing that motion.
What does a stigma do to reproduce?
the male parts of the plant: anther, filament, pollen female parts: stigma, style, ovules, ovuary first the pollen from the anther, which is the top stem, is rubbed on a pollinator or blown by a wind, or moved by a human. then it goes to the stigma, which is a sticky stem made to catch pollen. as soon as the pollen sticks, it travels down to the style. the ovules is the place where the eggs are. the pollen, which has the male sex cell, joins with the ovuary, the unfertilized female egg. then it creates a seed as the petals fall, since the petals are no longer needed to attract pollinators. the anthers and filament (which are the stems) fall off as well. all is left is the stigma, style, and ovuales, and the growing seeds. the little bumps on the style (the stem that holds the stigma) are the seeds
What is a plant stigma?
hi there the male parts of the plant: anther, filament, pollen female parts: stigma, style, ovules, ovuary first the pollen from the anther, which is the top stem, is rubbed on a pollinator or blown by a wind, or moved by a human. then it goes to the stigma, which is a sticky stem made to catch pollen. as soon as the pollen sticks, it travels down to the style. the ovules is the place where the eggs are. the pollen, which has the male sex cell, joins with the ovuary, the unfertilized female egg. then it creates a seed as the petals fall, since the petals are no longer needed to attract pollinators. the anthers and filament (which are the stems) fall off as well. all is left is the stigma, style, and ovuales, and the growing seeds. the little bumps on the style (the stem that holds the stigma) are the seeds
How can you tell by looking that a flower is insect-pollinated?
Bright-colored, nectar-containing, nice-scented petals with firm, sticky pollen-producing anthers and firm, sticky-coated stigma inside the blooms are what tell -- just by looking -- that a flower is insect-pollinated. The structural looks back up the function-serving purposes of attracting insects (bees, butterflies) to fulfill feeding requirements through nectaring in order to have pollen moved between male and female parts for reproduction.
What has to happen for a flower to be pollenated?
In order for a flower to be pollentated, the pollen from the stamen of a male plant must be moved to the stigma of a female plant. This is often done by bees which visit the plants in search of nectar to make their food known as honey.
Is pollen transferred from the pistol to the stamens?
Flowering plants have several different parts that are important in pollination. Flowers have male parts called stamens that produce a sticky powder called pollen. Flowers have a female part called the pistil. The top of the pistil is called the stigma, and is often sticky. To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination. Cross-pollination produces stronger plants. The plants must be of the same species. For example, only pollen from a daisy can pollinate another daisy. Pollen from a rose or an apple tree would not work. Pollination occurs in several ways. People can transfer pollen from one flower to another, but most plants are pollinated without any help from people. Usually plants rely on animals or the wind to pollinate them. When animals such as bees, butterflies, moths, flies, and hummingbirds pollinate plants, it's accidental. They are not trying to pollinate the plant. Usually they are at the plant to get food, the sticky pollen or a sweet nectar made at the base of the petals. When feeding, the animals accidentally rub against the stamens and get pollen stuck all over themselves. When they move to another flower to feed, some of the pollen can rub off onto this new plant's stigma. Plants that are pollinated by animals often are brightly colored and have a strong smell to attract the animal pollinators. Another way plants are pollinated is by the wind. The wind picks up pollen from one plant and blows it onto another. Plants that are pollinated by wind often have long stamens and pistils. Since they do not need to attract animal pollinators, they can be dully colored, unscented, and with small or no petals since no insect needs to land on them.
Why do plants need pollination to occur?
About 65 percent of flowering plants require insects for pollination to complete seed production. About 20 percent of all insects feed on the nectar of flowers as part of their life cycles. The plant and insect world are codependent for survival.
Ways pollen can move?
There are three common kinds of pollination: self pollination, wind pollination, and insect pollination. •Self pollination is when the pollen in the stamen (male part of the plant) drops into an ovule (egg) in the ovary of the stigma (female part) of the same plant. This is why it is called self pollination. • Wind pollination occurs in plants that are all-male (its flowers only containing stamen) and all-female (its flowers only containing the stigma). The stamen develops millions of pollen grains in the spring, as the chance of the pollen reaching an all-female plant is very little, and releases it in the summer. The few pollen grains that reach an all-female plant will be likely to reach an ovule in the stigma and pollinate the ovule. • Insect pollination is used by a lot of plants. This method of reproduction is when an insect such as a bee, butterfly, moth, or sometimes a bat, reaches a flower and sucks out the nectar in the flower. As they do this, the pollen gets stuck in their legs, and when they suck the nectar from the flower of another plant, the pollen gets onto the flower and into the stigma. If the pollen from a different type of plant is put into a stigma of a plant, pollination won't occur, so God has designed the bees of each hive to suck nectar from one kind of flower each day, so that the chance of pollination will be more.
How is pollen transferred from the stamen to the pistol?
Flowering plants have several different parts that are important in pollination. Flowers have male parts called stamens that produce a sticky powder called pollen. Flowers have a female part called the pistil. The top of the pistil is called the stigma, and is often sticky. To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination. Cross-pollination produces stronger plants. The plants must be of the same species. For example, only pollen from a daisy can pollinate another daisy. Pollen from a rose or an apple tree would not work. Pollination occurs in several ways. People can transfer pollen from one flower to another, but most plants are pollinated without any help from people. Usually plants rely on animals or the wind to pollinate them. When animals such as bees, butterflies, moths, flies, and hummingbirds pollinate plants, it's accidental. They are not trying to pollinate the plant. Usually they are at the plant to get food, the sticky pollen or a sweet nectar made at the base of the petals. When feeding, the animals accidentally rub against the stamens and get pollen stuck all over themselves. When they move to another flower to feed, some of the pollen can rub off onto this new plant's stigma. Plants that are pollinated by animals often are brightly colored and have a strong smell to attract the animal pollinators. Another way plants are pollinated is by the wind. The wind picks up pollen from one plant and blows it onto another. Plants that are pollinated by wind often have long stamens and pistils. Since they do not need to attract animal pollinators, they can be dully colored, unscented, and with small or no petals since no insect needs to land on them.
How do bees pollinate flowers?
Bees are attracted to flowers by their bright colours and their desire to collect nectar. Nectar tends to be found close to the base of the petals and as the bee attempts to reach it the bee brushes against the male stamens of the flower, which deposit pollen on to its fur. When the bee flies to another flower the same process occurs and some of the pollen which was already present on its fur may brush against the female parts of this flower and then serve to fertilise it.
What is a way that pollen can be moved from flower to flower?
Pollen can be transferred by the wind or by insects such as bees. Some flowers are also pollinated by animals such as bats and hummingbirds.
How does pollen get to one place to another?
Pollen is moved from one place to another by pollinators like bees, butterflies, birds and wind. These pollinators carry pollen grains from one flower to another, facilitating the fertilization process in plants. This movement of pollen is crucial for the reproduction of many plant species.
What happens when soil is moved?
it is no longer where it used to be
