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131Hedgehog signaling pathway — In a growing embryo, cells develop differently in the head or tail end of the embryo, the left or right, and other positions. They also form segments which develop into different body parts. The hedgehog signaling pathway gives cells this… …
132Bremen Cathedral — (German: Bremer Dom or St. Petri Dom zu Bremen), dedicated to St. Peter, is a church situated in the market square in the center of Bremen, in northern Germany. The cathedral belongs to the Evangelical Church in Germany. History The first church… …
