Answer:
false, because the pitury gland sends signals for sex hormones to be produced in the body.
The immune system fights off the pathogen by Leukocytes also known as white blood cells. When a pathogen enters the body the immune system becomes alert to it and sends out sends out the Phagocytes (a type of Leukocytes) which engulfs the pathogens.
Develop a hypothesis, make observations, analyze data, draw conclusions
Needs to be checked by a doctor.