Simplify the following text for a Grade 12 native English-speaking person.
Original: The adaptive immune response provides the vertebrate immune system with the ability to recognize and remember specific pathogens ( to generate immunity ) , and to mount stronger attacks each time the pathogen is encountered .
Simplified: The adaptive immune response gives the vertebrate immune system the ability to recognize and remember specific pathogens . The system mounts stronger attacks each time a particular pathogen is encountered .