"Complement" refers to a group of
A. white blood cells.
B. plasma proteins.
C. antibodies.
D. molecules on the surface of pathogenic microbes.
Answer: B
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The adrenal medulla secretes which hormone during times of excitement, stress, and exercise?
A) thymosin B) norepinephrine C) testosterone D) erythropoietin E) mineralcorticoids
You performed a blood typing activity as described in the lab manual. You observed agglutination (clumping) with anti-B and anti-Rh serum. Based on the test results you can conclude that the blood type you tested was ________
A) A- B) A+ C) B- D) B+
Epinephrine and norepinephrine exert identical effects in all tissues
Indicate whether the statement is true or false
Active tissues receive approximately ________ as much O2 as inactive tissues.
A) 2 times B) 3 times C) 5 times D) 10 times E) 100 times