Blood flowing through the human circulatory system moves nutrients and oxygen to cells and carries waste and carbon dioxide away from cells how are the circulatory system and the respiratory system related in humans PLEASE HELP ME FASTT PLEASEEE

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 statements best describe the atoms of the gas neon? check all that apply

Introducing minvasive species to an ecosystem results in an increase in biodiversity is it true or false