Answer: Option A
Explanation:
The T-cells and B-cells of the immune system are the part of specific immune response.
If the number of T-cells dies then the ability to activate B lymphocytes will also be lost as they help B-cells to secrete antibodies and macrophages to destroy the antigens.
T cells also helps in the activation of cytotoxic T-cells to kill the targeted cell which is affected by antigens.
hence, the correct answer is option A
I think A , please correct me if i’m wrong
Answer:
Raise the head of the bed to sitting position.
Answer: Prevalence measures
Explanation:
The primary method that is used to measure the existence of states of a particular health or illness with regards to a population at a given time period is referred to as prevalence measure.
The prevalence measures simply refers to the proportion of individuals that have a particular disease at a particular period of time in a population.
