The ability to ward off a specific infection or disease, usually as a result of prior exposure and the body's production of antibodies or lymphocytes against one pathogen is called .

Adaptive Immunity.

Explanation:

   This is known to be a subsystem from the general immune system. It can also known as Acquired Immune System. It provides extra protection after the immune system must have encountered a particular pathogen. This is because it develops an immunity storage after an initial contact. Example is when a body encounter chicken pox; after the treatment, it provides immune against this form of disease and prevents the growth of its pathogens in the said body.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.