Child Development and Pedagogy · Prenatal Development
By around 10 to 12 days after conception, which outer layer of cells sends out microscopic finger-like projections called chorionic villi to absorb oxygen and nutrients from maternal blood?
- 1Trophoblast✓
- 2Neural crest
- 3Blastula
- 4Blastocyst
Correct answer
Trophoblast
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