The female gametophyte structure that produces eggs in nonvascular plants are called archegonia. The male structure that produces sperm are called antheridia. A gametophyt â¦ e is the part of the plant that is responsible for creating gametes AKA sexual reproductive cell (sperm or egg).
All American Express cards begin with '37,' followed by currency indicator (digits 3, 4), account number (digits 5-11), card number within account (digits 12-14), and check digit (digit 15).
Start with the first digit. It, and in some cases the second digit, identifies the card network that will carry the transaction. All MasterCards start with a â5,â for example. Visa cards start with a â4.â Discover cards get a â6.â. American Express cards start with â34â or â37,â while the number â7â is reserved for gasoline cards issued by petroleum companies such as Exxon and Mobil.