In 1952, chemists Harold Urey and Stanley miller mixed ammonia, methane, and hydrogen in a closed container, zapped it with electrical sparks, and found that they had created many amino acids.
What are Amino Acids?
Organic substances known as amino acids have both amino and carboxylic acid functional groups. Although there are hundreds of different amino acids in nature, proteins, which are made up of alpha-amino acids, are by far the most common.
According to the positions of the primary structural functional groups, amino acids can be categorized.
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It was the anti-westward movment forbidding all settlers to cross the appalachian mountains.
Answer:
A.) an incumbent president facing opposition within his own party
B.) a nation ready for change
Explanation:
Right on ed2020
