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A heartbeat generally appears at about

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6 years ago

A heartbeat generally appears at about

A heartbeat generally appears at about
A) 16 weeks.
B) 12 weeks.
C) 3 weeks.
D) 9 weeks.
E) 6 months.

Textbook

Psychology: AP Edition

Edition: 1^st

Authors: Zimbardo, Johnson, Weber, Gruber

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