Mechanisms of Pollination

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What is pollination?
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Pollination is the transfer of pollen grains from the anther to the stigma of a flower.
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What are the main parts of a flower involved in pollination?
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The main parts are the female organ (pistil) and the male organ (stamen).
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Name three methods by which pollination can occur.
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Pollination can occur by wind, water, or insects.
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Define self-pollination.
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Self-pollination occurs when pollen grains from a flower's anther are carried to the stigma of the same flower.
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Why is cross-pollination genetically favorable?
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Cross-pollination is genetically favorable because it involves gene mixing and can produce more diverse characteristics.
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What is required for cross-pollination to occur?
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Cross-pollination requires pollinating agents like insects, wind, or water.
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Which type of pollination does not require a pollinating agent?
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Self-pollination does not require a pollinating agent.
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How does wind aid in pollination?
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Wind carries pollen grains from one flower to another, enabling pollination without physical contact.
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What role do insects play in pollination?
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Insects transfer pollen grains from flower to flower while searching for nectar, facilitating cross-pollination.
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Explain how water can aid in pollination.
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Water can transport pollen grains to the stigma, usually in aquatic plants.
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What part of the plant most attracts pollinators during pollination?
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Petals attract pollinators with their color and scent.
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What is a pollinating agent?
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A pollinating agent is any force that helps carry pollen from an anther to a stigma, such as wind, insects, or water.
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Which type of pollination involves the same flower?
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Self-pollination involves the same flower.
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What is the genetic disadvantage of self-pollination?
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Self-pollination does not mix genes, reducing genetic diversity.
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What is the advantage of cross-pollination over self-pollination?
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Cross-pollination increases genetic variability and plant adaptability.
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