In electronics, it is generally standard to use red wire for positive (+) connections and black wire for negative (-) connections. 1  What other colors you use is largely a matter of choice and will depend on the specific circuit you are building. For example, there are a few different ways you could wire this circuit with red, green, blue, and yellow LEDs, but they will all work exactly the same:
Bruno de Heceta (Hezeta) y Dudagoitia was born in Bilboa, Spain, in 1743 to an old Basque family. The Spanish claim to Alaska and the Pacific Northwest had dated back to a 1493 papal bull (Inter caetera) and rights contained in the 1494 Treaty of Tordesillas.
Ardipithecus is a genus of an extinct hominine that lived during Late Miocene and Early Pliocene in Afar Depression, Ethiopia. Originally described as one of the earliest ancestors of humans after they diverged from the main ape lineage, the relation of this genus to human ancestors and whether it is a hominin is now a matter of debate.