the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones,...
The right option is; Thermoreceptors
Thermoreceptors helps her adjust to the change in the temperature of her surroundings.
Thermoreceptors are specialized nerve cells that are sensitive to detect changes in heat energy (temperature). Thermoreceptors are found in every part of the skin. They detect heat and cold, therefore, they allow sensory reception within the body. The sensitivity of the skin to temperature changes is based on the number of thermoreceptors and where they are located.
You are likely referring to active immunity that can come from naturally acquiring the disease or vaccines. Both have T cells that fight pathogens and more antibodies are created to recognize viruses and the like and neutralize them. B cells can make more antibodies. There is a lot more detail to this question but hope it helps. Have a good day.