Either A or B. I will do readersherch
Explanation: But Africans had their particular system of recording past events, situations, and traditions before Europeans started writing about it. This is based on collecting oral testimonies. As a result, Non-African historians used written documentation to chart the history of the continent.
I believe the answer is: increasing generalizability
Generalizability refers to the extend that a conclusion of a research could be applicable to different people. As generalizability goes higher, The reliability of the measurement would be increased. and it could easily be replicable even if the test subjects are drastically altered.
In contrast to the South where the cash crop plantation system dominated, and New England whose rocky soil made large-scale agriculture difficult, The middle colonies were fertile. Land was generally acquired more easily than in New England or in the plantation South.
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.
