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The _____ is the period of prenatal development that spans from conception through the tenth week of gestation.

User Elva
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Answer:

trimester

Step-by-step explanation:

pregnancy is divided into three stages called trimesters: first trimester, second trimester, and third trimester. A trimester lasts between 12 and 14 weeks, while a full-term pregnancy lasts around 40 weeks from the first day of a woman's last period.

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User Jaltek
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