Structures That Are No Longer Needed but Remain Within the Body

question 23

Multiple Choice

Structures that are no longer needed but remain within the body are called

• A) vestigial structures.
• B) nonuseful structures.
• C) ancient structures.
• D) defunct structures.
• E) retrostructures.

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Definitions:

Port of Contact

A port or harbor where goods, services, and cultural exchanges occur, serving as a point of entry and interaction for different regions or countries.

American Traders

Individuals or entities involved in the commerce of goods and services within the United States, playing a role in both domestic and international trade.

Distinctly American Character

Unique qualities or cultural aspects that define the identity of the United States, including individualism, freedom, and diversity.

Agriculture

The science, art, and business of cultivating soil, producing crops, and raising livestock; it is a key sector for food production and rural livelihoods.