Hereditary bleeding disorders that result from lack of clotting factors are referred to as ________
A) petechiae
B) hemophilia
C) aplastic anemia
D) thrombocytopenia
B
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The formula H2O refers to
A. two hydrogen molecules and one oxygen molecule. B. a molecule that contains one hydrogen atom and two oxygen atoms. C. a molecule that contains two hydrogen atoms and one oxygen atom. D. one hydrogen molecule and two oxygen molecules.
What does the thick filament do during a muscle contraction?
A) Pulls on the thin filament B) Blocks the actin active site C) Stabilizes the Z-disc D) Forms a stationary wall for the thin filament to pull against
Which hormone acts as a potent anti-inflammatory agent?
A) epinephrine B) insulin C) cortisol D) aldosterone
In children hives are usually due to foods, food additives or infections.
a. true b. false