<span>Structures that have a similar evolutionary origin and structure but are adapted for different purposes, such as a bat wing and a human arm, are called </span>homologous.
This question dose not have enough info to answer, i'll gladly help if this question had a date in which mercury was used or what had mercury in it.
I apologize.
<span>Because of semi-conservative replication in DNA synthesis, One of the strands of the new DNA molecule is original and one of the strands of the molecule is composed of new nucleic acids.</span>
