Proteins often require modification, and this usually means that sugar or lipid molecules are attached to the protein so that it can perform its function. Which organelle is responsible for
modifying proteins in eukaryotic cells?
A. Mitochondria
B. Vesicles
C. Lysosomes
D. Golgi bodies

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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?