Biology · Human Anatomy and Physiology
During early embryonic development, the solid ball of cells called the morula undergoes structural reorganization to form a hollow sphere with an inner cell mass and an outer fluid-filled cavity. This stage is known as the:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Zygote
- 2Blastocyst✓
- 3Oocyte
- 4Gastrula
Correct answer
Blastocyst
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