Cholera is caused by the bacterium, Vibrio cholerae and produces CTX (cholera toxin, choleragen)...
Bacteria have different phage resistance mechanisms, such as spontaneous mutations, the CRISPR-Cas system.
Spontaneous mutations are the main mechanisms leading to phage resistance by altering the structure of bacterial wall components that act as phage receptors. These include lipopolysaccharides (LPS), outer membrane proteins, cell wall teichoic acids, capsules, and other bacterial components.
Answer:
A. It is a source of genetic variation
Carolus Linnaeus recognized the vital role of the internal environment and suggested that objective of mechanisms within the body is to preserve the constant conditions of the internal environment.
He was later known as the creator of current modern system of naming animals called binomial nomenclature
hope this helps
The answer is c i think or the 3 one,why wouldnt you give more food to a developing community
