Which of the Following Did Researchers Find About Rates of Physical

question 42

Multiple Choice

Which of the following did researchers find about rates of physical activity from ages 9 to 15?

• A) Fewer than one-third of sampled youths met the U.S. government recommendation of at least 60 minutes of moderate to strenuous physical activity per day.
• B) From ages 9 to 15, physical activity increased by about 40 minutes per day for sampled youths.
• C) In U.S. high schools, about 75 percent of girls and 80 percent of boys are enrolled in physical education courses.
• D) Only one-half of all U.S. high school students participate in a daily physical education class.

Explain the relationship between private saving, government deficit, and investment in a closed economy.

Identify the types of expenditures that are considered investments in macroeconomics.

Discern the taxation effects on different forms of bond income.

Evaluate the impact of government tax policies on saving behaviors.

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Definitions:

Trophoblast

The outer cell layer of a late blastocyst, which in placental mammals gives rise to the chorion and to the fetal contribution to the placenta.

Blastocyst

An early stage of mammalian embryonic development, characterized by a sphere of cells surrounding a fluid-filled cavity and an inner cell mass that will develop into the fetus.

Limb Buds

The early developmental structures in vertebrate embryos which will develop into the limbs (arms and legs).

Muscles Differentiate

The process by which muscle cells undergo specialization, acquiring characteristics specific to muscle tissue types such as skeletal, cardiac, or smooth muscle.