C because cellular respiration uses combine oxygen and other toxic waste.
I believe the primary structure will be preserved. The secondary level of proteins is defined by patterns of hydrogen bonds between the main chain peptide groups. Therefore distorting the Hydrogen bonds disrupts the secondary structures. The primary structure on the other hand is not affected by disruption of the hydrogen bond since these structures refers to the sequences of amino acids in the polypeptide chains that are joined by the peptide bonds.
There are no following answer choices so I suggest that they can produce more more fish. People can stop fishing for a period of time. People can stop fishing for that kind of fish. The states could put a limit on how many fish you can catch. They can put restrictions on the size. They can say the fish has to be longer than a certain amount of length.
The most important acid deoxyribonucleic acid, or DNA, which carries the genetic code of any organism it, and the way that it transmits the individual characters in the life without this acid, or genetic code world would not exist :)
I hope you understand what I mean :)