mesoderm. in biology, middle layer of tissue formed in the gastrula stage of the developing embryo. At the end of the blastula stage, cells of the embryo are arranged in the form of a hollow ball.
8th Anniversary Gift Ideas. Traditionally, couples give gifts of bronze or pottery to celebrate their 8th wedding anniversary. Bronze is created by combining two different metals, copper and tin, to make something strong and beautiful, just like a marriage brings two people together into something more.
43rd Wedding Anniversary Gifts. Then, there's anniversary number forty-three. The modern gift is travel. If you haven't taken advantage of travel as a gift for other anniversaries or the two of you like to take trips, this gift is in the bag â or, suitcases, as it were.