Good afternoon, Nicol3713. I think the answer would be B - Rough ER because the bound ribosomes are attached to the rough ER or nuclear envelope. It should be right. Let me know if you need any more help. Have a great day!!
A.) Guanine = 45
B.) Adenine = (100 - 90 )/ 2 = 10/2 = 5
Hope this helps!
The answer is The Nervous System.
It interacts with all the other systems, it tells them what to do.
Hope it helps!
