When Analyzing Stages of Economic Development in the United States

question 148

Multiple Choice

When analyzing stages of economic development in the United States, it appears that we have entered the "tertiary stage." This is a stage marked by a shift toward

• A) agriculture.
• B) manufacturing.
• C) services.
• D) population increases.

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Definitions:

Nitrogenous Base

An organic molecule that makes up the building blocks of nucleic acids, such as DNA and RNA, including adenine, thymine, guanine, cytosine, and uracil.

Nucleic Acids

Complex organic substances that constitute the genetic material of living cells; DNA and RNA.

Nitrogen

A chemical element with the symbol N and atomic number 7, essential for all living organisms as it makes up a part of all proteins and nucleic acids.

DNA Polymerase

An enzyme that catalyzes the synthesis of DNA molecules from deoxyribonucleotides, the building blocks of DNA.