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        | specialized cell involved in sexual reproduction |  | 
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        | a type of tissue that is specialized to conduct water and nutrients through the body of the plant |  | 
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        | a type of cell that is specialized to conduct water |  | 
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        | a form of vascular tissue that carries water upward from the roots to every part of the plant |  | 
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        | a type of vascular tissue that transports solutions of nutrients and carbohydrates produced by photosynthesis |  | 
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        | a substance that makes cell walls rigid |  | 
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        | underground organ that absorbs water and minerals |  | 
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        | photosynthetic organ that contains one or more bundles of vascular tissue |  | 
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        | gathered vascular tissue made of xylem and phloem |  | 
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        | supporting structure that connects roots and leaves, crrying water and nutrients between them |  | 
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        | creeping or underground stem |  | 
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        | container for haploid spores found on the underside of fronds |  | 
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        | a cluster of grouped sporangia |  | 
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        | a seed plant that bears its seeds directly on the surfaces of cones |  | 
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        | a seed plant, which is also called a flowering plant, that bears its seeds within a layer of tissue that protects the seed |  | 
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        | seed-bearing structure of gymnosperms |  | 
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        | seed-bearing structure of angiosperms |  | 
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        | the structure in which the entire male gametophyte is contained |  | 
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        | the transfer of pollen from the male gametophyte to the female gametophyte |  | 
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        | an embryo of a plant that is encased in a protective covering and surrounded by a food supply |  | 
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        | the early developmental stage of the sporophyte plant |  | 
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        | surrounds and protects the embryo and keeps the contents of the seed from drying out |  | 
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        | a thick wall of tissue surrounding the seed |  | 
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        | a class within angiosperms which has a single cotyledon, parallel veins, floral parts often in multiples of 3, vascular bundles scattered throughout the stem, and fibrous roots |  | 
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        | a class within angiosperms which has two cotyledons, branched veins, floral parts often in multiples of 4 or 5, vascular bundles arranged in a ring, and taproots |  | 
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        | flowering plant that completes a life cycle within one growing season and includes many garden plants |  | 
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        | angiosperm that completes its life cycle in two years which germinate, grow roots, very short stems, and sometimes leaves in the first year, and in the second year grow new stems and leaves and then produce flowers and deeds, afterward dying |  | 
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        | flowering plants that live for more than two years, usually living through many years |  | 
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        | a type of tissue that is only found in the tips of shoots and roots |  | 
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        | a group of untifferentiated cells that divide to produce increased length of roots and stems |  | 
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        | cells that make up dermal tissue |  | 
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        | thick waxy layer on outside of leaf |  | 
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        | cellular projections which help protect the leaf and give it a fuzzy appearance |  | 
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        | another kind of zylem cell which are wider than tracheids |  | 
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        | phloem cells arranged end to end |  | 
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