Which grade of organization and body plan can be observed in the morula?

The morula represents an early stage of embryonic development, characterized by a solid ball of cells resulting from the cleavage of a fertilized egg. At this stage, the grade of organization is cellular, as the cells are undifferentiated and have not yet begun to form specialized structures or tissues. The body plan is not yet established in the morula, as it precedes the formation of the blastula, where the beginnings of body organization and spatial arrangement emerge.