Why Are Plesiadapiforms Not Considered True Primates

question 44

Multiple Choice

Why are plesiadapiforms not considered true primates?

• A) They lacked stereoscopic vision and grasping hands.
• B) They were not mammals.
• C) They had highly mobile elbow joints.
• D) They appear too early in the fossil record to be related to primates.

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Definitions:

American Psychological Association

A professional organization representing psychology in the United States, promoting research, education, and clinical practice in the field.

William James

An American philosopher and psychologist, often referred to as the father of American psychology, known for his contributions to functionalism.

Margaret Floy Washburn

A prominent early American psychologist known for her work in animal behavior and motor theory development.

Mary Whiton Calkins

An early American psychologist who became the first woman to serve as President of the American Psychological Association.