How many different classes of antibodies are produced by the human immune system?
A) 1
B) 2
C) 3
D) 4
E) 5
Answer: E) 5
How many different classes of antibodies are produced by the human immune system?
A) 1
B) 2
C) 3
D) 4
E) 5
Answer: E) 5
Biology MCQ
Animal Biology
How many different classes of antibodies are produced by the human immune system?