The Question Below Refers to the Following Information Figure 451
-Which of the Following Is Secreted by the Anterior

question 18

Multiple Choice

The question below refers to the following information.
In an experiment, rats' ovaries were removed immediately after impregnation and then the rats were divided into two groups. Treatments and results are summarized in the table below
$\begin{array}{lcc}\hline&\text { Group } 1 &\text { Group } 2\\\hline (\text { Daily injections of }&&\\\text { progesterone (milligrams) } & 0.25 & 2.0 \\\text { Percentage of rats that } & & \\\text { carried fetuses to birth } & 0 & 100\\\hline\end{array}$

Figure 45.1
-Which of the following is secreted by the anterior pituitary?

• A)ecdysone
• B)glucagon
• C)thyroxine
• D)oxytocin
• E)growth hormone

---

Definitions:

Natural Rate

The rate of unemployment when the labor market is in equilibrium, reflecting the number of people who are jobless due to the natural turnover in the workforce.

Long-Run Phillips Curve

A concept suggesting that in the long run, there is no trade-off between inflation and unemployment, with the curve being vertical at the natural rate of unemployment.

Unemployment Shifts

Refers to changes in the unemployment rate due to economic fluctuations, policy changes, or other external factors.

Fed Chooses

When mentioned in economic contexts, "Fed Chooses" likely refers to the decision-making processes of the Federal Reserve, the central banking system in the United States, regarding monetary policy.