Structure A is used for (4) cell communication. The cell membrance has receptros for cell communcation.
Structure B is used to (1) extract energy from nutrients. The mitochondria is the power house of the cell.
Structure C is used for (1) protein synthesis. The golgi apparatus is where protein is created.
Answer:
Hey there!
This is not a valid experiment because the sunshine each section received were not equal.
Let me know if this helps :)
The answer is B because n is equal to the number of notebooks. you can not exceed the amount of money that you have to buy the notebooks
-4 = 8m + 18n
-18n = 8m + 4
/-18 /-18 /-18
n = 8m/-18 + 4/-18
I'm not sure so yeah
