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A plant that completes its life cycle in a year |
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the system of nomenclature in which two terms are used to denote a species of living organism, the first one indicating the genus and the second the specific epithet |
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any various neutral compounds of carbon, hydrogen, and oxygen most of which are formed by green plants and which constitute a major class of animal foods. |
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the division of a cell into two daughter cells with the same genetic material |
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the semipermeable membrane surrounding the cytoplasm of a cell |
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a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose. |
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a plastid that contains chlorophyll and in which photosynthesis takes place. |
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a leaf of a plant consisting of several or many distinct parts (leaflets) joined to a single stem. |
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the material or protoplasm within a living cell, excluding the nucleus |
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the part of a seed that develops into a plant, consisting (in the mature embryo of a higher plant) of a plumule, a radicle, and one or two cotyledons. |
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the part of a seed that acts as a food store for the developing plant embryo, usually containing starch with protein and other nutrients. |
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the outer layer of tissue in a plant, except where it is replaced by periderm |
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It is usually formed by thin, moderately branching roots growing from the stem. |
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It is usually formed by thin, moderately branching roots growing from the stem. A fibrous root system is universal in monocotyledonous plants and ferns. |
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the seed-bearing part of a plant, consisting of reproductive organs |
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(of a seed or spore) begin to grow and put out shoots after a period of dormancy |
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The peony and the tree are both plants, but the peony is a herbaceous plant. |
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a flattened structure of a higher plant, typically green and bladelike, that is attached to a stem directly or via a stalk. Leaves are the main organs of photosynthesis and transpiration. |
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any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids. |
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a region of plant tissue, found chiefly at the growing tips of roots and shoots and in the cambium, consisting of actively dividing cells forming new tissue. |
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the central and most important part of an object, movement, or group, forming the basis for its activity and growth. |
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Plants must obtain the following mineral nutrients from the growing media: the primary macronutrients: nitrogen (N), phosphorus (P), potassium (K) the three secondary macronutrients: calcium (Ca), sulfur (S), magnesium (Mg) |
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Plants must obtain the following mineral nutrients from the growing media: the primary macronutrients: nitrogen (N), phosphorus (P), potassium (K) the three secondary macronutrients: calcium (Ca), sulfur (S), magnesium (Mg) |
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any of a number of organized or specialized structures within a living cell |
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Palisade cells are plant cells found within the mesophyll in leaves, right below the upper epidermis and cuticle. |
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each of the segments of the corolla of a flower, which are modified leaves and are typically colored. |
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the vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves. |
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the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. |
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the female organs of a flower, comprising the stigma, style, and ovary. |
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soft or spongy tissue in plants or animals, in particular |
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The transfer of pollen from the anthers of a flower to the stigma of the same flower or of another flower. |
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the transfer of pollen from the anther to the stigma |
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a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances. |
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the part of a plant that attaches it to the ground or to a support, typically underground, conveying water and nourishment to the rest of the plant via numerous branches and fibers. |
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each of a large number of elongated microscopic outgrowths from the outer layer of cells in a root, absorbing moisture and nutrients from the soil. |
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a flowering plant's unit of reproduction, capable of developing into another such plant. |
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The outer protective covering of a seed. |
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each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike. |
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each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike. |
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each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike. |
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each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike. |
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each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike. |
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a leaf whose blade is not divided to the midrib even though lobed — compare compound leaf. |
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the male fertilizing organ of a flower, typically consisting of a pollen-containing anther and a filament. |
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the main body or stalk of a plant or shrub, typically rising above ground but occasionally subterranean. |
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a straight tapering root growing vertically downward and forming the center from which subsidiary rootlets spring. |
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the state of turgidity and resulting rigidity of cells (or tissues), typically due to the absorption of fluid. |
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A cavity within the cytoplasm of a cell, surrounded by a single membrane and containing fluid, food, or metabolic waste |
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Veins provide support for the leaf and transport both water and minerals |
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the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem. |
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