Once income has been verified, use the following to determine qualifying quarters: If the year is: Credit 1 quarter for at least this amount. Credit 2 quarters for at least this amount. Credit 3 quarters for at least this amount. Credit 4 quarters for at least this amount.
Making the world better, one answer at a time. Periwinkles reproduce annually with internal fertilization of egg capsules that are then shed directly into the sea. The female periwinkle lay 10,000 to 100,000 eggs. Periwinkles reproduce annually with internal fertilization of egg capsules that are then shed directly into the sea. The female periwinkle lay 10,000 to 100,000 eggs.
Most species of Volvox reproduce both asexually and sexually, and some, such as Volvox carteri, switch primary modes of reproduction at least once each year. Asexual colonies have reproductive cells known as gonidia, which produce small daughter colonies that are eventually released from the parent as they mature.