Two types - one type is characterized by individual cells that are separated by the formation of septa or cross-walls, with each cell having a typical eukaryotic structure. The second type is coenocytic, in which cross-walls are not present to form individual cells.
In Polish the meaning of the name Jack is: God is gracious. English Meaning: The name Jack is an English baby name. In English the meaning of the name Jack is: God is gracious. During the Middle Ages, Jack was so common that it was used as a general term for 'man' or 'boy'.Famous Bearer: American actor Jack Lemmon.n Polish the meaning of the name Jack is: God is gracious. English Meaning: The name Jack is an English baby name. In English the meaning of the name Jack is: God is gracious. During the Middle Ages, Jack was so common that it was used as a general term for 'man' or 'boy'.
Its origin is Variant of the English name John. Jack is a form of John and is generally pronounced like JAK. This name is mostly being used as a boys name. Last year it ranked 40th in the U.S. Social Security Administration list of most popular baby boy names. Jack is a nickname for the English name John. It derives from Jackin and Jankin, both of which are earlier medieval diminutives of John.