Answer:
I would say the bleeding one
Explanation:
your answer is the Ureter
A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. ... These are called silent mutations.
<span>It is used to develop the
tree of life and understand relationship between organisms. This study enables scientists comprehend the morphology and behaviour of organism. Its study is also
significant in medicine in understanding the evolution of diseases and hence important
in drug development. </span>