Why would a newborn that makes lactase be healthier than one who does not

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

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

What are levels of ecology and how can we remember them