The natural ability of the body of farm animal to resist invasion of diseases is called
Answer Details
The natural ability of the body of farm animals to resist invasion of diseases is called immunity. Immunity is the ability of the body to recognize and defend against harmful pathogens such as viruses and bacteria. When the body is exposed to a disease-causing pathogen, the immune system produces special proteins called antibodies that can recognize and neutralize the pathogen.
Over time, the immune system "remembers" how to fight off the pathogen, which provides long-term protection against future infections. This is why many animals (and humans) only get certain diseases once in their lifetime.
Quarantine and isolation are measures used to prevent the spread of disease, while vaccination involves administering a small, harmless dose of a pathogen to stimulate the immune system to produce antibodies against it. However, the natural ability of the body to resist invasion of diseases is immunity.