The Japanese word for Japan is æ¥æ¬, which is pronounced Nippon or Nihon and literally means the origin of the sun. The earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, the Old Book of Tang.
The secondary immune response occurs the second time (3rd, 4th, etc.) the person is exposed to the same antigen. At this point immunological memory has been established and the immune system can start making antibodies immediately.
Which of the following is a characteristic of a secondary immune response? - A secondary immune response is slower than a primary immune response. - A secondary immune response is started by naÃ¯ve lymphocytes, while a primary immune response is initiated by memory cells. - A secondary immune response lasts longer than a primary immune response.