Answer:
The correct answer is option B.
Explanation:
MHC or The major histocompatibility complex is a series of genes that have information and rise to cell surface proteins required for the adaptive immune system to recognize the pathogen or the foreign molecules, There are three classes of MHC - MHC1, MHC2, and MHC3.
MHC class II generally present only on antigen-presenting cells such as single nuclear phagocytes, dendritic cells, thymic and B cells.
Thus, the correct answer is option B.
The predator species keeps the prey species under control. Without predators, prey animals would over populate.
Hope this helped.
Lessen impacts of flooding by absorbing water and reducing the speed at which flood waters flow. Upstream wetlands can serve to store flood waters temporarily and <span>release them slowly downstream.</span>
Below are the choices that can be found elsewhere:
A) dimensional B) categorical
<span>C) diathesis D) sociological
</span>
The answer is B categorical.
<span>One criticism of the DSM noted by your author is that it adheres to a categorical model, which means that a person is seen as either having a mental disorder, or not having a mental disorder. There is little or no allowance for “degrees” of a disorder.</span>
