Questions and Answers
During human pregnancy, when does the zygote transform into a fetus?
After the eighth week
What is the average duration of human pregnancy from fertilization of the egg?
38 weeks
Why might fetal tissue be considered useful for treating nervous system diseases?
Fetal tissue contains more stem cells
At what time period during human pregnancy does the first trimester end?
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What is the significance of reaching week 8 in human embryonic development?
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What is the most hazardous period in human pregnancy according to Purdue University?
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When does the fetus grow and become very active?
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What happens during the third trimester of pregnancy?
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Which substances can cause structural abnormalities during pregnancy?
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What is Fetal Alcohol Syndrome?
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Which lifestyle choices by the mother can affect the developing embryo?
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When is the uterus grown enough for the pregnancy to become obvious?
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What is the approximate maternal blood flow to the placenta at term?
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At term, how long are the fetal capillaries in a fully developed placenta?
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Which of the following germ layers is correctly matched with the tissue that develops from it?
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What hormones start to be produced by the placenta around 4 months into pregnancy?
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Why does testing for HCG work as a pregnancy test early in pregnancy but not late in pregnancy?
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What is the role of the chorionic villi in the placenta?
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