The difference is that emphysema and chronic bronchitis are different types of chronic obstructive pulmonary disease (COPD). <span />
D is the correct answer. Hope this helps.
Answer: nucleus
Explanation: In eukaryotes, ribosomes get their orders for protein synthesis from the nucleus, where portions of DNA (genes) are transcribed to make messenger RNAs (mRNAs). An mRNA travels to the ribosome, which uses the information it contains to build a protein with a specific amino acid sequence.
