Multiple Choice
Why is it important that white blood cells are able to travel outside the human circulatory system?
A) In order to form a complement, white blood cells must leave the circulatory vessels.
B) White blood cells are the antibodies that target parasites.
C) Pathogens may be found in areas of the body other than within circulatory vessels.
D) White blood cells must leave the circulatory system in order to return red blood cells to the circulatory vessels.
Correct Answer:

Verified
Correct Answer:
Verified
Q10: The body responds to tissue damage by
Q12: The antibodies released by activated B cells
Q14: This graph depicts the immune response following
Q16: While pruning your roses, you get scratched
Q19: The term clonal in clonal selection refers
Q27: Memory cells<br>A) include B and T cells
Q28: Complement proteins<br>A)kill invaders.<br>B)are precursors to antibodies.<br>C)repel macrophages.<br>D)break
Q43: Interferons are thought to "interfere" with viral
Q65: Lymphocytes surround and digest the damaged host
Q74: Once B cells become effector cells, they<br>A)produce