Answer:
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
I wish I could help ya, but unfortunately I have no clue what this biology question is.
Most of the organisms (Living things/Biotic) need nonliving (abiotic) things to live in, such as caves, tunnels, under rocks (for the smaller ones.), water, etc.