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self pollination insects wind water
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∙ 11y agobees butterflys and humming birds
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What is the job of the pistil in flowers?
The pistil is situated at a flower's center. It is a flower's female reproductive part that consists of the ovary at its base, style, and stigma. The role of the stigma, which is located at the top of the pistil, is to collect pollen. A pollen tube, which grows down through the style, connects the stigma to the ovary. The ovary contains ovules that are fertilized by the pollen.
How do you xxplain the structure of the pollen grain describe the development of pollen grain and male gamete?
While still attached to the anther, the nucleus of the pollen grain divides, producing two nuclei, one of which becomes the tube nucleus, the other is called the generative nucleus. The generative nucleus divides again, forming two sperm cells. Once the pollen grain is released from the anther, it is transported (by wind or fauna) to the stigma of the female flower. Once a pollen grain has landed on the stigma, it begins to grow a pollen tube (there are three nuclei in the pollen tube, one from the tube nucleus, and the two sperm). When the pollen tube reaches the ovary, both sperm cells enter the ovule, one fuses with the egg nucleus, the other fuses with polar nuclei that is also inside the ovule, forming the endosperm.
What are three ways that seeds and fruits can be scattered?
Seeds and fruits can be scattered by wind, water, and birds.
Sticky secretion on the scales of seed cones traps?
A sticky secretion on the scales of seed cones traps pollen grains. Structure is produced by a pollen grain that lands near an ovule is pollen tubes.
How do bees pollinate crops and why is this important?
When a bee visits a flower to forage for nectar, some of the flower's pollen rubs off the stamens on to the bee's body. The bee then moves on to another flower and some of the pollen on the bee's body is transferred to the stigma, thus pollinating, or fertilizing, the flower. When a bee starts foraging from a particular type of flower, it will visit only that type of flower for as long as it can. This behaviour means that pollen is always delivered to the correct variety of flower. Pollination is important because a plant will not develop seeds or fruit if the flower is not pollinated. If the crop plants are not pollinated, the crops will fail. Bees are not the only pollinators, but they are by far the most important, responsible for most of the pollination done by insects. It is said that one out of every three mouthfuls of food we eat and beverages we drink are the result of pollination by bees. If we were to lose the bees, we would be hungry.
What is three ways that pollen is taken from flower to flower?
what are you taqlking about
Can a pollen grain of a flower have one lobe?
No, after a research it is not seen that a pollen grain of a flower have only one lobe. Commonly pollen grain have two or three lobes.
What does the pistel do on a flower?
Pistil or the female reproduction structure is the innermost whorl, located in the center of the flower. Often vase-shaped, the pistil consists of three parts: the stigma, the style and the ovary.
What three other names is Texas state flower known as?
bluebonnet blue flower that texan flower
What is the job of the pistil in flowers?
The pistil is situated at a flower's center. It is a flower's female reproductive part that consists of the ovary at its base, style, and stigma. The role of the stigma, which is located at the top of the pistil, is to collect pollen. A pollen tube, which grows down through the style, connects the stigma to the ovary. The ovary contains ovules that are fertilized by the pollen.
Which one is the odd one out a root a stem a leaf or a flower?
Flower because without the other three you would not have the flower.Good Luck
What 3 parts of the plant are classified as vegetative non reproductive?
The flower IS the reproductive part of the plant. Everything plays a part. The petals attract and funnel insects to the areas where pollen (sperm) can be collected and delivered to another plant. The stamen (male part) consists of the anther which holds the pollen and the filament which elevates the anther. In the center is the pistil (female part) which has the stigma (receives the pollen), style (tube which leads to the ovary, ovary and ovule (reproductive cells which are fertilized by the pollen). So the answer is "none". On the other hand if by "flower" you mean the whole plant, root, stem and leaves are three non reproductive parts.
Are marigolds monocots or dicots?
Marigolds are dicots. Dicots have reticulate veins in the leaves, flower petals in multiples of four or five, three pollen furrows, and its vascular bundles form rings.
How do you xxplain the structure of the pollen grain describe the development of pollen grain and male gamete?
While still attached to the anther, the nucleus of the pollen grain divides, producing two nuclei, one of which becomes the tube nucleus, the other is called the generative nucleus. The generative nucleus divides again, forming two sperm cells. Once the pollen grain is released from the anther, it is transported (by wind or fauna) to the stigma of the female flower. Once a pollen grain has landed on the stigma, it begins to grow a pollen tube (there are three nuclei in the pollen tube, one from the tube nucleus, and the two sperm). When the pollen tube reaches the ovary, both sperm cells enter the ovule, one fuses with the egg nucleus, the other fuses with polar nuclei that is also inside the ovule, forming the endosperm.
What are three ways that seeds and fruits can be scattered?
Seeds and fruits can be scattered by wind, water, and birds.
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.
What three types of settlement pattern?
The three types of settlement patterns are: scattered, linear, and clustered. Scattered means that the houses are scattered, linear means that they are beside roads, and clustered means their clustered. :)
