The fourth week after conception, growth is rapid. The neutral tube along a baby’s back is closing and the baby’s heart is pumping blood. If this neutral tube does not close properly, a condition called

The fourth week after conception, growth is rapid. The neutral tube along a baby’s back is closing and the baby’s heart is pumping blood. If this neutral tube does not close properly, a condition called ______ may results.

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The fourth week after conception, growth is rapid. The neutral tube along a baby’s back is closing and the baby’s heart is pumping blood. If this neutral tube does not close pro…

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