PLEASE HELP What is the function of the human immune system?

to regulate the production of hormones within the body

to produce red blood cells within bone marrow

to defend the body from invading pathogens

to regulate enzymes involved in growth and development

Explanation:

the function of the human immune system is to defend the body from invading pathogens...

to regulate enzymes involved in growth and development

is the function of the human immune system.

Explanation:

The major function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body. This is done by the recognition of self and response to non-self.

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.

i do not know and i have a 100 in this class