Ribosomes are found in many places around a eukaryotic cell. You might find them floating in the cytosol. Those floating ribosomes make proteins that will be used inside of the cell. Other ribosomes are found on the endoplasmic reticulum. Endoplasmic reticulum with attached ribosomes is called rough ER. It looks bumpy under a microscope. The attached ribosomes make proteins that will be used inside the cell and proteins made for export out of the cell. There are also ribosomes attached to the nuclear envelope. Those ribosomes synthesize proteins that are released into the perinuclear space.
You can find most of the mountains in Mexico in one of two regions. The highest mountain peaks are located in the state of Puebla. The main mountain range in Mexico--the Sierra Madre Mountains--runs from the northwest to the southeast portion. The mountains start near the California border and continue into Guatemala.
San Carlos Mountain sits just west of San Carlos, Mexico, on the Sea of Cortez. (Photo: san carlos mountain image by Mitchell Knapton from Fotolia.com).