Cells left in the bloodstream and the lymphatic system to recognize and respond to any future attacks to the body by a past invader are called:
A) killer and helper T cells.
B) B cells.
C) macrophages.
D) memory T and B cells.
Correct Answer:
Verified
Q20: Posttraumatic stress disorder (PTSD)is a condition that
Q21: Hypertension with no known cause is called:
A)essential
Q22: Conditions that have a mind and a
Q23: The total _ is given in the
Q24: Fissures or cuts in the wall of
Q26: Which of the following can cause hypertension?
A)Kidney
Q27: A rupture of a blood vessel in
Q28: The pressure of the blood against the
Q29: Which of the following is a type
Q30: A behavior pattern associated with the development
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