Facts:
It is also concerned with the transport of proteins and lipids within the cell.
Rough ER has ribosomes attached to its surface; proteins synthesized on the ribosomes are enclosed in vesicles and transported to the Golgi Apparatus.
That is called the<u> variable</u> because it varies/changes in the experiment,
it's like x in algebra (with more than one placeholder), if it changes, it normally gives you a different result
Answer:
2Mg (s) + 
(g) ---> 2MgO (s)
Explanation:
The answer is C.Circulatory because its made up of blood vessels that carry blood away from and towards the HEART
