Upon activation, B-cells will divide to form _________.
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_________ are cells with specialized proteins called actin a…
_________ are cells with specialized proteins called actin and myosin.
True or False: The testes are suspended outside of the abdom…
True or False: The testes are suspended outside of the abdominal cavity because proper sperm development occurs below normal body temperature.
All B and T cells begin development in ___________.
All B and T cells begin development in ___________.
True or False: Stem cells in the lymph nodes divide to form…
True or False: Stem cells in the lymph nodes divide to form all of the blood cells.
Cells in the heart’s _________ function as the heart’s pacem…
Cells in the heart’s _________ function as the heart’s pacemaker thanks to their ability to generate electrical signals.
Which type of T-cell is responsible for activating B-cells a…
Which type of T-cell is responsible for activating B-cells and other T-cells?
True or False: The upper respiratory tract consists of the n…
True or False: The upper respiratory tract consists of the nose, pharynx, and larynx.
Which of the following associations is not correct?
Which of the following associations is not correct?
White blood cells _______.
White blood cells _______.