Which might be a cause of the increase in songbirds at the feeders

Why are adults bigger than they were as children biology

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 organ controls breathing? lungs alveoli heart diaphragm