The cholera bactery evolves which means it changes the way it works. So if you are vaccinated, the bactery will evolve itself in such a way that your body doesn't reject it.
Answer:
The basic unit of life is a cell
Explanation:
because the pressure exerted by artery is more than that of vein due to its narrow lumen and thick walls...causing it difficult to clot.
A is right yeah I’m smart wo wo
They both contain nucleus.