Dispersal In Plants

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The seeds of a plant is vital for the survival a species and the genetic information of the individual parent. In plants, seed dispersal is the movement of the plant’s offspring away from places with high population density. Plants produce new seeds in order for the seeds to later grow into new plants; however, the seeds need to be able to obtain sunlight, water, and nutrients from the soil, so, the seeds can cannot fall to the ground next to the parent. If the seeds are not dispersed, then the new seedlings will grow close to the parent plant which results in competition. Because plants are usually immobile organisms, they will need to use different means to disperse seeds. The ways that plants disperse seeds are by air, water, and the use of animals. In air dispersal, the seeds of the parent plant rely on the air and wind to carry the seeds. Some functions of wind dispersal include helicopters, tumbleweeds, gliders, parachutes, and cotton seeds. Helicopters use a wind with a subtle pitch like a propeller which causes the seed to spin quickly while slowly floating to the ground. These helicopters usually carry one seed. An example of a helicopter are flowering plants in the Maple Tree family (Aceraceae). Another method, tumbleweeds, are effective at dispersing seeds as the tumbleweed can carry thousands of seeds. With a gust of wind, the tumbleweed can roll through a region while releasing the thousands it carries. Gliders include two lateral wings attached to the seeds of

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