Ribosomes attached to the endoplasmic reticulum are responsible for making proteins for what purpose? to be exported out of the cell
to be used within the cell
to provide structural cell support
to help with cell division

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?