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Thursday 1 August 2013

Beautiful Flowers Wallpaper

Beautiful Flowers Wallpaper Biography

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Flowering plants or angiosperms are a widely diverse group of plants, with over 250,000 species worldwide. They appeared relatively recent in the geological history and quickly evolved and spread. Today, flowers can be found in most any ecosystem on the planet, providing the basis for wildlife distribution and diversity.

Flowering plants have four basic structures: petals, sepals, stamens and carpels. The carpels form the female reproductive part of the flower, sometimes merged into a single unit called the pistil. The male portion of the flower is contained within the stamen. The variations on these four parts is what makes flowers such a diverse group.

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Identification

Flowers of a given habitat have evolved to withstand the environmental stresses it must endure. Because of the diversity of habitats, there is wide diversity in flowers. For example, the unusual shape of the pitcher plant with its tube-like shape serves the purpose of trapping insects in its peat bog habitat. The orchid family also provides some unusual and often stunning flowers within its approximately 20,000 species. In the race to attract pollinators, flowers have evolved to capture any niche that gives them a competitive edge.

Function

The purpose of the flower is to reproduce seed. Reproduction requires a means of pollination for most flowers. Environmental agents such as wind and water can move pollen plant to plant. Bees, naturally, are an important pollinator. Other insects also play that role. Flies, for example, are attracted to the strong scent of wild ginger and act as pollinators. Animals such as birds and bats fulfill that function as well. Accidental pollination can occur from wildlife and even people.

Benefits

Flowers, through reproduction, provide seeds and food, which is perhaps their most important function. Some flowers, such as mullein with its anti-inflammatory properties, have medicinal uses. Flowers have other non-tangible benefits. A 2001 Rutgers study linked the presence of flowers with a decrease in depression in seniors. Increases in productivity in the workplace have also been demonstrated by the presence of flowers.Flowers are something that add beauty to almost any environment, but many valentine flowers are afford to buy fresh flowers for the house every few days. Flowers and roses are add romantic history to our food. Each valentine flower has a specific design which best encourages the transfer of its pollen. The valentine flowers is more useful in lovers.Flowers commonly have glands called nectaries on their various parts that attract these animals. Some flowers have patterns, called nectar guides, that show pollinators where to look for nectar. Flowers also attract pollinators by scent and color. Flowering plants are heterosporangiate, producing two types of reproductive spores.

Flowers are something that add beauty to almost any environment, but many valentine flowers are afford to buy fresh flowers for the house every few days. Your source for quickly finding and submitting free articles about Flowers. Flowers add romantic history to our food.

A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to mediate the union of male sperm with female ovum in order to produce seeds. The process begins with pollination, is followed by fertilization, leading to the formation and dispersal of the seeds.