America's Open Door Policy on Immigration, Which Allowed All Immigrants

question 76

Multiple Choice

America's open door policy on immigration, which allowed all immigrants to enter and become U.S. citizens, ended with

• A)the Chinese Exclusion Act, which suspended for 10 years entrance of the Chinese to the U.S.
• B)an immigration act which required all immigrants to pass a literacy test before entering the United States.
• C)the Johnson Act which introduced a limit on the number of immigrants who could enter the U.S. in a single year.
• D)an immigration act that excluded the Japanese from immigration.

---

Definitions:

Vasoconstriction

The constriction of blood vessels that elevates blood pressure and diminishes blood circulation to specific regions.

Thromboxane

Specific class of physiologically active fatty acid derivatives present in many tissues.

Endothelin

A potent vasoconstrictive peptide produced by vascular endothelial cells that regulates blood vessel tone and blood pressure.

Connective Tissue

Tissue that supports, connects, or separates different types of tissues and organs in the body, characterized by few cells and extensive extracellular matrix.