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).
Discover/Visa/MasterCard: On the back of the card, you should see a 16-digit credit card number followed by a special 3-digit code. This 3-digit code is your CID. American Express: There is a 4-digit code printed on the front of your card just above and to the right of your main credit card number.