Welcome to the 1520 Perfect Dictionary
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| Notochord | |
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| NOTOCHORD Definition: The dorsal unsegmented elastic rod of cells which forms a skeletal axis in chordates. It persists in the lowest vertebrates, but is transitory in the embryo of others, being replaced in the adult organisms by the vertebral column. __________________________________ See perfect cell (3). See perfect rod (6). See perfect type (1). | |
1520 Products |
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1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way. |
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 1520 Sex Game |
 1520 Puzzles |
 1520 Marriage Game |