Answer:
One possible cause of persistent sadness could be depression
Explanation:
anything could trigger the sadness or anxiousness in a person, maybe thinking of a deceased loved one, a sudden break up, stage fright, anything
Answer: he) is specified by the codons UUU and UUC, and the amino acid leucine (Leu) is specified by the codons CUU, CUC, CUA, and CUG.
n.y ffc M L
band hrh kg y u.c
Water
hope it helps:)
