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jan 5, 2018 - Week 5
Description:
The spinal cord, brain, heart, and blood has begun to form. The embryo is in a C-shape, and is surrounded by protective membranes. (Source 1)
Added to timeline:
9 Dec 2017
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Biology Timeline 1
Date:
jan 5, 2018
Now
~ 6 years and 3 months ago
Images: