D through a microscope!
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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.
Extrusion <span>is not a process involved in the formation of sedimentary rock</span>
They all under the kingdom animalia. The others are plantae, fungi and Protoctista.