It would be glycogen, after reading the article from the science learning hub.
The rough endoplasmic reticulum also known as RER is covered in ribosomes and helps produce most of the proteins. Smooth endoplasmic reticulum also known as SER does not have these ribosomes, and it is almost solely for producing lipids.
Good luck :)
:) !! hope this helps ! have a great day. :D
Long eyelashes that doesnt allow the sand to get into its eyes
And its ability to store water for long periods of time in its hump