About _______ Years Ago, Prokaryotes Probably First Added Adequate Quantities

question 29

Multiple Choice

About _______ years ago, prokaryotes probably first added adequate quantities of oxygen to the atmosphere to allow for the evolution of aerobic cellular metabolism.

• A) 500 million
• B) 1 billion
• C) 2.5 billion
• D) 3.8 billion
• E) 4.6 billion

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Definitions:

Earl Warren

An American jurist and politician who served as the 14th Chief Justice of the United States, known for his leadership in the landmark case Brown v. Board of Education.

Chief Justice

The presiding judge in the supreme court of a country or state, representing the highest judicial authority.

Constitutionality

The quality or state of being in accordance with a nation's constitution, or the legality of actions measured against constitutional principles.

Civil Rights Bill

Legislation aimed at enforcing constitutional rights, particularly those relating to individuals' civil liberties and protections against discrimination.