How would Wegener explain that tropical plant fossils, Glossopteris, were found in Antarctica?

Which of the following statements are true chromosomes make up genes

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

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