Name two ways in which antibodies in the blood will prevent a pathogen from making you sick.

This is all I can think of:
1. An antigen in the body will bind to an antibody that was made by...

thanks

write out any three conposition of blood

To prevent a pathogen from making you sick, antibodies in the blood can employ two main strategies:

1. Neutralization: Antibodies can directly bind to the surface proteins of the pathogen, such as the spikes on a virus, thereby preventing the pathogen from invading or infecting host cells. This binding can neutralize the pathogen by blocking its ability to attach to target cells or interfering with its entry into cells.

2. Marking for destruction: Antibodies can also stimulate the immune system to recognize and eliminate the pathogen more effectively. By binding to the pathogen's surface proteins, antibodies act as markers, or flags, that can be recognized by immune cells, such as macrophages or natural killer cells. These immune cells can then identify the marked pathogen and destroy it, preventing the pathogen from replicating and causing illness.

It's important to note that these are not the only mechanisms of action for antibodies, and different pathogens may require additional immune responses to effectively prevent illness. Additionally, the production of antibodies is mediated by the immune system, specifically B lymphocytes, in response to exposure to pathogens or through vaccination.