What Evidence Exists That Humans Evolved in Africa? Select the TWO

question 156

Multiple Choice

What evidence exists that humans evolved in Africa? Select the TWO answers that are correct.

• A) Humans today can trace their mtDNA to four female ancestors,all of whom lived in Africa many thousands of years ago.
• B) Modern-day Africans have acquired half as many mtDNA mutations as compared to the mtDNA of people in the rest of the world.
• C) Genetic diversity in nuclear DNA is lowest in African populations and increases in populations located farther away from Africa.
• D) The oldest known fossils of modern humans,approximately 160,000 and 195,000 years old,were found in Ethiopia.
• E) As shown by mtDNA studies,one branch of the human family tree consists of modern Africans,and the other branch consists of all other populations in the world.

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Definitions:

Child-Directed Speech

A simplified and exaggerated form of language used by adults when communicating with young children, characterized by a higher pitch and slower tempo.

High-Pitched Voice

A vocal tone characterized by higher frequencies, typically associated with smaller vocal cords or heightened emotions.

Simple Words

Utilization of words that are easy to understand or communicate, typically used to ensure clarity or inclusiveness in communication.

Repetition

The action of repeating something that has already been said or written, often for emphasis or to aid memorization.