Can anyone make sure theses answers are correct? it might help a lot. 15 pt!

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

Which statement best compares aerobic and anaerobic respiration

In which part of the body is a ball-and-socket joint found?