I need help with each scenario ​

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

What is used as a template during replication? a- mrna b- trna c- rrna d- dna