What is a K select species

What two fields of study provide the core information that is used to classify organisms?

Which best describes carbon dioxide’s path out of the body

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