Biology · Avian Embryology
The blastodisc in developing avian or reptilian eggs is primarily constituted by the:
- 1Epiblast and trophoblast
- 2Epiblast and mesoderm
- 3Epiblast and hypoblast✓
- 4Hypoblast and mesoderm
Correct answer
Epiblast and hypoblast
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