THE ANSWER IS a! hOPE THIS HELPS!
Answer:
A.
the tendency of a cell to maintain a stable internal environment.
Explanation:
Answer:
Explanation:
B cells produce and secrete antibodies, activating the immune system to destroy the pathogens. The main difference between T cells and B cells is that T cells can only recognize viral antigens outside the infected cells whereas B cells can recognize the surface antigens of bacteria and viruses
Answer:
Poverty
Explanation:
The other factors are uncontrollable such as age (which continues to evolve with time), climate (which changes independently of man), and vaccination is a means of prevention against disease and not a factor. of risk.
In poor countries, we continue to die from diseases that have almost disappeared from rich countries. 1. million people a year, or diseases of lack of health infrastructure, such as diarrhoea that kills 1.8 million people (mostly young children) annually. AIDS is also ravaging (2.8 million deaths) and the epidemic requires considerable effort. Many other diseases receive much less attention, so every year, malaria kills 1.3 million people.
A-<span>Rowing, hope this helps. Merry Christmas & Happy holidays!</span>
