Presentation On Flowers

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This document repeatedly lists the name and contact information of Luqman Khan and states that it is a presentation by Luqman Khan. It provides Luqman Khan's name and phone number 10 times, indicating he is presenting and can be reached at the phone number provided.

Educación Empresariales Entretenimiento y humor

A Presentation By: LUQMAN KHAN (+92-313-9696728)

A Presentation By: LUQMAN KHAN (+92-313-9696728) THANKS

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Pollination, transfer of pollen grains from the stamens, the flower parts that produce them, to the ovule-bearing organs or to the ovules (seed precursors) themselves. In plants such as conifers and cycads, in which the ovules are exposed, the pollen is simply caught in a drop of fluid secreted by the ovule. In flowering plants, however, the ovules are contained within a hollow organ called the pistil, and the pollen is deposited on the pistil’s receptive surface, the stigma. There the pollen germinates and gives rise to a pollen tube, which grows down through the pistil toward one of the ovules in its base. In an act of double fertilization, one of the two sperm cells within the pollen tube fuses with the egg cell of the ovule, making possible the development of an embryo, and the other cell combines with the two subsidiary sexual nuclei of the ovule, which initiates formation of a reserve food tissue, the endosperm. The growing ovule then transforms itself into a seed.

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Pollination in plants is the process where pollen is transferred from the anther, the male part of a flower, to the stigma, the female part of a flower. Pollen can be transferred to one plant or even a nearby plant so that they can get fertilized and make more flowers. This happens in plants that have flowers called angiosperms. In this lesson you will learn about : 1) What is Pollination? 2) Types of Pollination 3) Self-Pollination - Adaptations for Self-Pollination - Advantages and Disadvantages of Self-Pollination 4) Cross-Pollination - Adaptations for Cross-Pollination - Advantages and Disadvantages of Cross-Pollination 5) Agents of Cross-Pollination - Entomophilous - Anemophilous - Hydrophilous 6) Artificial Pollination I hope this document is helpful to you. Please share the document with your friends if you think this will benefit them. Get ready for the next lesson. Thanks.

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Parts of a Flower Sepals Petals Receptacle Pistil Stamen Stamen The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower. Filament- Supports the Anther Anther- Produces Pollen Grains Pistil The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed. Stigma: The part of the pistil where pollen germinates. Peduncle The stalk of a flower. Types of Flowers Complete Flowers- have both male and female parts Incomplete Flowers- have either male or female parts but not both. Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds. How Are Plants Pollinated? Bees Birds Wind Humans Animals How Are Flowers Useful to Us? Flowers are not just beautiful to look at, but they also serve a vital role in our ecosystem. Flowers help our ecosystem flourish and attract a plethora of life to the area and facilitate the expansion of our environment. If flowers are cut down or destroyed before pollination can occur, that particular species has a high chance of dying off in that area. In addition, local wildlife will also vanish in that area since they would have no food. Flowers help keep the ecosystem growing and provide new plant life, as well as help sustain local insects and birds. References https://www.google.com/search?q=the+warmth+of+the+sun&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&ved=0ahUKEwijzIvum-vNAhVGE5QKHVPECrQQ_AUICCgD#tbm=isch&q=flower&imgdii=FzbkxijP3tcE6M%3A%3BFzbkxijP3tcE6M%3A%3B9HeLL-NVdsjrxM%3A&imgrc=FzbkxijP3tcE6M%3A https://www.google.com/search?q=plants+need+to+grow&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwiJtPjrnOvNAhXCj5QKHcPEAP0Q_AUIBigB#tbm=isch&q=parts+of+flower+for+kindergarten&imgrc=e6V8oQskJakoiM%3A https://www.google.com/imgres?imgurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2FStamen_en.gif&imgrefurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2F354_en.html&docid=Ds4mwro4x7NUhM&tbnid=QKkshukLyPxM2M%3A&w=455&h=283&noj=1&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQMwg6KAcwBw&iact=mrc&uact=8&biw=1366&bih=624#h=283&imgdii=QKkshukLyPxM2M%3A%3BQKkshukLyPxM2M%3A%3Bsk-2e39y3k6kCM%3A&w=455 https://www.google.com/search?q=stamen&biw=1366&bih=624&noj=1&source=lnms&sa=X&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQ_AUIBygA&dpr=1

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A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants. The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs. In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to bring beauty to their environment, and also as objects of romance, ritual, religion, medicine and as a source of food. In this lesson you will learn about : 1) Flower - Definition & Functions 2) Floral Symmetry 3) Pedicellate & Sessile Flowers 4) Insertion of Floral Leaves on the Thalamus 5) Parts of a Flower 6) Some Important Terms related to Flowers 7) Floral Whorls - Calyx, Corolla, Androecium and Gynoecium 8) Placentation 9) Inflorescenece I hope this document is helpful to you. Please share the document with your friends if you think this will benefit them. Get ready for the next lesson. Thanks.

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Flowers are presented as a show of affection such as flowers for Valentine's Day, flowers for mother's day and flowers for anniversaries. For centuries, flowers have also played an important part in our physical and mental well being too. Flowers have been used to stablise our emotions through the use of essential oils, eliminate bad odors, potpourri, use as an alternative to caffeinated tea, uplift our spirit and can sometime bring us out of depression.

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