Which of the following statements is not a description of how skin protects the body?
A. The skin has dendritic cells that respond to pathogens.
B. The skin's surface has an acidic pH.
C. Cornified stratum corneum makes it hard for pathogens to enter.
D. All of these are descriptions of how the skin protects the body.
Answer: D
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Gastric pits are
A) ridges in the body of the stomach. B) involved in absorption of liquids from the stomach. C) openings into gastric glands. D) acid scars in the esophagus. E) hollows where proteins are stored.
Which of the following is NOT a second messenger utilized by G-proteins?
A) Ca2+ B) Na+ C) cyclic GMP D) Phosphatidyl inositol
The enzyme carbonic anhydrase catalyzes the catabolism of H2CO3 to H2O and CO2.
Answer the following statement true (T) or false (F)
During a dangerous situation, the sympathetic nervous system causes widespread vasoconstriction, raising systemic blood pressure. This is an example of the myogenic response
Indicate whether this statement is true or false.