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).
MasterCard: Your identification number is the 3-digit number found on the back of your credit card near the signature panel. Visa: Your identification number is the 3-digit number found on the back of your credit card near the signature panel. American Express: Your identification number is the 4-digit number found on the far right on the front of your credit card.