The Graph Below Shows the Levels of Estrogen and Progesterone

question 3

Multiple Choice

The graph below shows the levels of estrogen and progesterone over the course of the menstrual cycle.

What event is caused by the rapid decrease in hormones in the region indicated by the arrow in the upper right portion of the graph?

• A) ovulation
• B) menstruation
• C) formation of the corpus luteum
• D) follicle maturation

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Definitions:

Business Cycle

The fluctuations in economic activity that an economy experiences over time, marked by periods of expansion and contraction.

Business Cycle

The fluctuations in economic activity over time, characterized by periods of expansion (growth) and contraction (recession) in the economy.

Business Activity

The aggregate economic actions carried out by companies, including production, sales, and services, influencing the overall economic health.

Index of Leading Indicators

A composite of economic variables that predicts future economic activity, aiding in economic forecasting.