Cells can have two kinds of endoplasmic reticulum (er): smooth er, which has no
ribosomes, and rough er, which has ribosomes embedded in its membrane. what
would happen if the rough endoplasmic reticulum in the cell of an organism lost all
of its ribosomes?
a. atp production in the cell would stop.
b. protein production in the organism would stop.
c. storage of proteins within the cell would increase.
d. proteins would no longer be exported from the cell.

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos