The immune system is typically divided into what two major categories?
a. effective and non-effective
b. innate and acquired
c. mature and immature
d. natural and artificial
e. normal and auto-immune
Question 2
What are the two major physical changes in the brain that are characteristic of Alzheimer's disease?
a. aluminum deposition and edema
b. amyloid plaques and neurofibrillary tangles
c. amyloid plaques and hypertrophy
d. calcification and hypertrophy
e. aluminum deposition and neurofibrillary tangles