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An average pregnancy of 40 weeks is divided into how many trimesters?

ASixty
BThree
CSeven
DEight
Answer & Solution
Correct answer: B. Three
1. Each block runs about 13 weeks. 2. Three such blocks make 40 weeks. 3. So there are three trimesters. _Source: OpenStax Anatomy and Physiology 2e, Chapter 28, Development and Inheritance._
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