I think verterbrates have a back bone others do not. I only THINK so.
reproductive cells like eggs and sperm
The chart very nicely lays out the amino acid each codon corresponds to. You're looking for "trp" in the chart, which only appears once, beside the UGG codon. Therefore, only one codon codes for tryptophan.
Answer:
its the skin system pleas ei just need the points
Explanation:
West Nile lead to a decline in susceptible avian and human hosts, with a subsequent decline in the number of cases since 1997
