A plant is a living organism in the kingdom Plantae. Plantae is one of the five (or six, depending on which system is being used) kingdoms into which all living things are categorized. Other kingdoms include Animalia (the …
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Plants are multicellular organisms in the kingdom Plantae that use photosynthesis to make their own food. There are over 300,000 species of plants; common examples of plants include grasses, trees, and shrubs. Plants have an important role in the world's ecosystems.
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Plants need temperatures above freezing while they are actively growing and photosynthesizing. They also need sunlight, carbon dioxide, and water for photosynthesis. Like most other organisms, plants need oxygen for cellular respiration and minerals to build proteins and other organic molecules.
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Terrestrial plants share a few defining characteristics, structural as well as functional. Perhaps the most basic shared feature of most plants is their division into shoots and roots.
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Introduction. Hundreds of thousands of different species, or kinds, of plant grow on Earth. Some plants are so tiny that people can hardly see them. Others are trees that grow as tall as skyscrapers. Most plants have several things in common. They need sunshine, water, and air to grow. They are not able to move around.
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The plant kingdom consists of multicellular eukaryotic life-forms (see eukaryote) with six fundamental characteristics: photosynthesis as the almost exclusive mode of nutrition, essentially unlimited growth at meristems, cells that contain cellulose in their walls and are therefore somewhat rigid, the absence of organs of movement, the absence ...
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Evolution. Diversity. The desmid Cosmarium botrytis is a single cell. The coast redwood Sequoia sempervirens is up to 380 feet (120 m) tall. There are about 382,000 accepted species of plants, [15] of which the great majority, some 283,000, produce seeds. [16] .
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The word 'plant' encompasses a wide range of living organisms, all of which belong to the kingdom Plantae and share a range of characteristics. In this article, we examine the key characteristics of land plants – bryophytes, lycophytes, ferns and seed plants.
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Plants need temperatures above freezing while they are actively growing and photosynthesizing. They also need sunlight, carbon dioxide, and water for photosynthesis. Like most other organisms, plants need oxygen for cellular respiration and minerals to build proteins and other organic molecules.
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The following article summarizes the morphological, physiological, and ecological features of plants. The principal focus is on structure and function, physiology, life histories, and ecology, and on how the various plant groups have evolved, dispersed, and become adapted to life on land.
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