In what aquatic zone does organic matter accumulate?
a. aphotic zone
b. benthic zone
c. photic zone
d. twilight zone

You are studying a protein that you call protein x. there is an aspartic acid at a key position in protein x which is important in the folding and stabilization of that protein. if this aspartic acid is changed to a different amino acid, which type of amino acid substitutions is most likely to allow the protein to fold normally?