While complement is part of nonspecific immunity, it helps both nonspecific and specific immunity
Indicate whether the statement is true or false.
Answer: True
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The underlying molecular basis for distinguishing blood-group antigens A, B and O is _____ at the erythrocyte surface
a. the presence or absence of fucose in glycolipids b. differences in the oligosaccharide attached to the lipid ceramide c. structural polymorphisms in the Rhesus D antigen d. the levels of MHC class I and class II molecules.
Anemia is any decrease in the oxygen-carrying ability of the red blood cells (RBC)
Indicate whether the statement is true or false
Involvement in school activities is a protective factor for drug abuse.
Answer the following statement true (T) or false (F)
Checking your body for ________ after a hike in the woods is the best way to prevent Lyme disease
A) fleas B) ticks C) chiggers D) mosquitos