★ Immune System Quiz
White blood cells that help rid the body of parasites by injecting them with toxic substances.
A. B cells
B. leukocytes
C. eosinophils
D. neutrophils
Select your answer:
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Health › View______ are disease-causing organisms that are so small you need a microscope to see them.
A. Insect
B. Parasite
C. Vector
D. Pathogen
Biology for Engineers › View
The following are the important steps in the transcription
A. Initiation only
B. Elongation only
C. Termination only
D. all the above