I believe it is K or rather potassium
decomposition of what was alive then the remains are buried by sediments which results in fossilization
A. Dietary and functional fiber
<span>Amad is in an assisted living facility. Assisted living is a long-term senior care choice that provides personal care services. Services can be as simple as help with meals and managing medications to additional services such as help with bathing, getting dressed, transportation to therapy or other doctor appointments.</span>
That would be the mitochondria. They produce the energy needed for activities that occur in the cell, thus its being called the "powerhouse of the cell"