Which change will cause the gravitational force between a baseball and a soccer ball to increase? CITROEN
removing the outer layer of the baseball
moving the balls farther apart
wrapping the soccer ball in layers of duct tape
using a baseball with a thinner leather

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