A biological species<span> is a group of individuals that can breed together (panmixia). However, they cannot breed with other groups</span>
Well the bottom level for the feudal system were system or surfs, they were owned my the land so the did all the farming or ranching, and then the next class was merchant and they traded with other towns or cities, so yes the feudalism did allow for production and trade of goods
The primary difference between Sparta and Athens is their differing systems of government. Sparta is considered an oligarchy, meaning ruled by the few, while Athens is believed by historians to have been a democracy.
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There are a lot of differences. Formally the USA is a Federal Republic, while the UK is parliamentary monarchy. In practice, this means the USA has an elected head of state (The President) who has real powers, while the UK has a hereditary monarch (The King or Queen), who has virtually no power but a lot of symbolism.
Explanation: