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

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation: