Multiple Choice
Chemicals responsible for the dilation and increased permeability of blood vessels in allergic reactions are called
A) histamines.
B) antigens.
C) antibodies.
D) lymphocytes.
Correct Answer:
Verified
Correct Answer:
Verified
Q51: Most ulcers are caused by<br>A)tick-borne rickettsias.<br>B)Helicobacter pylori
Q60: Ebola hemorrhagic fever can spread widely because
Q79: Macrophages act as _ of worn-out cells.<br>A)scavengers<br>B)healers<br>C)vectors<br>D)suppressors
Q80: Toxic shock syndrome was first diagnosed in
Q83: Which of the following are examples of
Q85: Hepatitis B is transmitted mainly by<br>A)casual contact.<br>B)contaminated
Q85: Lyme disease can cause all of the
Q86: Prions cause which of the following diseases?<br>A)rabies<br>B)Creutzfeldt-Jakob
Q87: Rocky Mountain spotted fever and typhus are
Q100: Antibacterial soap has been proven to reduce