Biology · Embryonic Development
A nurse educating postgraduate nursing students explains early embryonic development. Which finding best confirms that an embryo has progressed beyond the morula stage but has not yet implanted?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Formation of three distinct germ layers
- 2Development of a yolk sac with AFP synthesis
- 3Establishment of functional fetoplacental circulation
- 4Presence of an outer trophoblast layer and a fluid-filled blastocoele cavity✓
Correct answer
Presence of an outer trophoblast layer and a fluid-filled blastocoele cavity
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