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.
The answer is letter a. Being subjected to immense heat and the experience of pressure due to being far below the Earth's surface can change igneous or sedimentary rocks to metamorphic rocks.
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Enough sunlight enters those waters, so photosynthesis is possible
<span>Chromosomal abnormalies effect all of the bodies cells. Certain anomolies effect different body parts in different ways. One anomily may effect the heart and the other vision or hearing. Hope this helps. Have a nice day. Feel free to ask more questions.</span>
A is 100% right. Maybe B also could be right but not sure about it cos it should be genes