<span> B. organisms that use the same resource </span>
An example of something that isn't a command economy is the US (which has a mixed economy). A command economy is one that is used in China and Cuba today and was used for the Soviet Union.
The Navajo code was created by Philip Johnston. His father was a missionary, who spent years on a Navajo reservation, allowing Philip to grow up in contact with the language of the Navajo people, which made him learn this language fluently. The Navajo language was very complex, difficult to pronounce and write, which meant that very few people in the world, apart from the Navajos, could understand and learn that language.
Thus, the Navajo language became ideal for messages to be transmitted during the Second World War, without the enemy's army being able to decipher it.
The Navajo code was assembled by a set of Navajo words, where each word symbolized a phrase or other words in the English language.
An example is the word SO-A-LA-IH. In Navajo, this word means "star", but in the Navajo code it symbolized that the message provided was destined for Brigadier General Americano, since his insignia was a star.
Explanation:
Trade was also a boon for human interaction, bringing cross-cultural contact to a whole new level. When people first settled down into larger towns in Mesopotamia and Egypt, self-sufficiency – the idea that you had to produce absolutely everything that you wanted or needed – started to fade. A farmer could now trade grain for meat, or milk for a pot, at the local market, which was seldom too far away. Cities started to work the same way, realizing that they could acquire goods they didn't have at hand from other cities far away, where the climate and natural resources produced different things. This longer-distance trade was slow and often dangerous but was lucrative for the middlemen willing to make the journey. The first long-distance trade occurred between Mesopotamia and the Indus Valley in Pakistan around 3000 BC, historians believe. Long-distance trade in these early times was limited almost exclusively to luxury goods like spices, textiles, and precious metals. Cities that were rich in these commodities became financially rich, too, satiating the appetites of other surrounding regions for jewelry, fancy robes, and imported delicacies. It wasn't long after that trade networks crisscrossed the entire Eurasian continent, inextricably linking cultures for the first time in history. By the second millennium BC, former backwater island Cyprus had become a major Mediterranean player by ferrying its vast copper resources to the Near East and Egypt, regions wealthy due to their own natural resources such as papyrus and wool. Phoenicia, famous for its seafaring expertise, hawked its valuable cedarwood and linens dyes all over the Mediterranean. China prospered by trading jade, spices, and later, silk. Britain shared its abundance of tin.
My hands hurt now :')
Anyways Hope this helped, Have a nice day!
