Select your answer:

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Disease and Immunity › ViewIn many multicellular animals, pathogens are recognised as foreign and are attracked by the immune system.
Which of the following may be produced during an immune response?
A. Antigens
B. Antibiotics
C. Pathogen
D. Antibodies
Health and Disease › View
How does physical exercise temporarily affect the pulse?
A. Increases the pulse rate
B. Decreases the pulse rate
C. Has no effect
D. Results in a dysrhythmia