Explanation:
Involuntary muscle is under unconscious control while voluntary muscle is under conscious control. ... Involuntary muscle includes smooth muscle that lines organs, and cardiac muscle of the heart. While some involuntary muscles (e.g. cardiac muscles) contract in a constant rhythmic cycle, voluntary muscles do not.
Answer:
O c. A letter from an academic about her research
Answer: Gross domestic product
Explanation:
The United States economic measurement that “shrank” from $21.4 trillion in 2019 to $20.9 trillion in 2020 as a result of the coronavirus pandemic is the gross domestic product.
The gross domestic product simply has to do with the value in terms of money of the goods that the economy of the United States produces for that fiscal year. It is used to know how well an economy is doing.
