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.
Primary versus Secondary Immune Response The primary immune response occurs the first time that the immune system comes in contact with the antigen.
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.