The pH scale measures the concentration of how acidic or basic something is. The lower the number below 7, is acidic. Above 7 is basic. 7 is waters purest form.
First of all the chloroplasts are only in plant cells and second the mitocondria is what stlres the proteins i think but idk
<span>The oldest known vascular plants in the northern hemisphere are Devonian
This is true</span>
