Answer:
Chronic bronchitis might lead to other diseases because it weakens your immune system and makes it easier to catch diseases and harder to fight them off.
This is totally false, the combination of the two could result in overdose or possibly death.
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Protein, the building blocks of proteins are amino acids, different sequences and combinations of these amino acids result in huge numbers of proteins which have a variety of functions.
Because they are autorotrophs(they make their own food)so most organisms depend on them.