1.<span> reason why the Middle Ages are often called the Dark Ages is because, compared with other eras, historians don't know as much about this time. In some ways, this period of time has been lost to history. Many important records from this time have not survived.
2. </span><span>A guild is an association of artisans or merchants who oversee the practice of their craft in a particular town. The earliest types of guild </span>were formed<span> as confraternities of tradesmen. They </span>were<span> organized in a manner something between a professional association, trade union, a cartel, and a secret society.
</span><span>3. i cannot say because i have not seen the video, but i hope this helps
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National unions differed from local unions in that national unions represented the interests of laborers and workers from all over the country, as opposed to a specific region.
<span>They would want to expand east+south because it would be hard to expand the other directions through deserts and mountains.
Hope this helps!! :)</span>
Answer:changing one amino acid in the protein hemoglobin causes sickle-cell anemia
Explanation:
I just took the test
