Answer:
Engrossing one's self in work so that the feeling of productivity is enhanced
Explanation:
Our immune system is essential for our survival. Without an immune system, our bodies would be open to attack from bacteria, viruses, parasites, and more. It is our immune system that keeps us healthy as we drift through a sea of pathogens.
This vast network of cells and tissues is constantly on the lookout for invaders, and once an enemy is spotted, a complex attack is mounted.
The immune system is spread throughout the body and involves many types of cells, organs, proteins, and tissues. Crucially, it can distinguish our tissue from foreign tissue — self from non-self. Dead and faulty cells are also recognized and cleared away by the immune system.
If the immune system encounters a pathogen, for instance, a bacterium, virus, or parasite, it mounts a so-called immune response. Later, we will explain how this works, but first, we will introduce some of the main characters in the immune system.
I had a coma and activity 2 just destroyed it and you know English lictructare and history
Answer:
A is the correct option
Explanation:
The 50 stars represent each state there is.
<span>A huge crowd of Vietnamese gathered outside the "U.S. Embassy" in Saigon, hoping to be evacuated and making a chaotic scene. This was during the Vietnam war where the United States became its ally against the communist group of Vietnam. This really made a big rage over the people of Vietnam.</span>
