Answer:
The development of a protostomed organism begins with a spiral development. The mesoderm divides and forms the celoma. There is formation of the celloma from the blastoporo.
The development of a deuterostomy organism begins with radial and indeterminate segmentation. Archaenteron evaginations occur and celoma is formed. The anus develops from the blastoporo and the mouth from a secondary opening.
I believe the answer for your question is a mitochondria.
this would cause limited growth of the plant
a plant needs good soil, water, carbon dioxide and sunlight to be healthy
hope that helped