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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Answer:
d
Explanation:
I am right!! I took the test with my friend we got it right.
It has been established that the price is determined according to the request for goods by the consumers and the quantity provided by the producers, thus creating a balance in which consumers will want to acquire everything that producers of goods and services producers at the agreed price, and producers are also willing to take their production levels that consumers are demanded, always keeping a balance; since otherwise, the producers would lose to having an excess of goods and very few consuming them, which in turn, would force to lower too much the costs so as not to have a huge loss of profits.
The statements are not described but the conditions of the railroads in the United States after the civil war was not good.
At that time, the president was Abraham Lincoln, and he compromised that the government would subsidize the cost to build a trascontinental railroad. After the war ended railroad construction in the West and South continued for decades.
There were 2 main railway companies after the Civil War: the Central Pacific Railroad and the Union Pacific Railroad. Encouraged by government who provided funds, between 1865 and 1869, the Central Pacific laid 690 miles of track and the Union Pacific 1,087 miles.
Government helped the railway companies by giving them land, as they wanted American to expand west as cities were overcrowded in the east.
Answer:
I think that the answer is c
Explanation:
