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).
Add your answer. Security code on American Express card? Can some one tell me where the security code on the amex card is located. I know that it's usually in the back of the card, but this one has 4 digit number right above the card number in the front on it. Could this be it?