Which actions are involved in the immune response

Answer and Explanation:

The immune system protects the organism against pathogens such as, for example, bacteria and viruses

Steps:

1-A pathogen infects the organism

2-Macrophages engulf and digest pathogens, and subsequently recruits helper T cells

3-T cells recruit cytotoxic B cells

4- B cells generate plasma cells that secrete antibodies including  IgA, IgG and IgE

5-Antibodies bind to antigens and these complexes are targeted for phagocytic degradation

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.