Rough endoplasmic reticulum contains ribosomes, while smooth endoplasmic reticulum does not contain ribosomes. The ribosomes are what give rough endoplasmic reticulum its characteristic "roughness."
3. Carbon is waste inside the cell and must be removed from cell (im not entirely sure if thats the right one tho :) )
Answer: Homeostasis is the cell membrane is a responsible for maintaining a stable internal environment
