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Seeds: Fruits
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Seeds are produced in several related groups of plants, and their manner of production distinguishes the angiosperms ("enclosed seeds") from the gymnosperms ("naked seeds"). Angiosperm seeds are produced in a hard or fleshy (or with layers of both) structure called a fruit that encloses the seeds, hence the name. In gymnosperms, no special structure develops to enclose the seeds, which begin their development "naked" on the bracts of cones. However, the seeds do become covered by the cone scales as they develop in some species of conifer.
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You can't go overboard with seeds because of their high fat content. But, in moderation, seeds can be mixed with cereals or trail mix or eaten by themselves. A sprinkling of seed kernels over fruits, vegetables, pastas, or salads adds a touch of crunchy texture and flavor. Sesame seeds are especially attractive as toppers for breads, rolls, salads, and stir-fries.
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Many so-called seeds consist of hardened parts of the fruit enclosing the true seed which has a thin, papery seed coat. Among these are the achenes, as in the sunflower, dandelion, and strawberry, and the pits of stone fruits such as the cherry, peach, and raspberry. Many common nuts ... have this structure. Mechanisms for seed dispersal include parts of both fruit and seed. See also Population dispersal.
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There are a number of modifications to seeds by different groups of plants. One example is that of the so-called stone fruits (such as the peach), where a hardened fruit layer ( the endocarp) surrounds the actual seed and is fused to it.
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Nigella sativa reproduces with itself and forms a fruit capsule which consists of many white trigonal seeds. Once the fruit capsule has matured, it opens up and the seeds contained within are exposed to the air, becoming black in color (black seeds).
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FRAMINGHAM, Mass., May 8 /PRNewswire/ -- eProcurement service vendors that responded to the hot eprocurement climate and sowed their seeds early are now reaping fruitful returns. According to IDC, some of the leading vendors in the management consultant and systems integration groups harvested up to half a billion dollars in eprocurement services revenue in 2000 and expect even greater returns in 2001. The market intelligence and advisory firm says exceptional eprocurement services growth in 2000 and the presence of pure play eprocurement service firms confirm this market's value as a standalone services opportunity.
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