Which of the following events occurs in lung blood?
a. Free H+ binds to hemoglobin.
b. Plasma HCO3
? enters erythrocytes.
c. In the plasma, CO2 and H2O are converted into HCO3
? and H+.
d. In erythrocytes, carbonic anhydrase converts CO2 and H2O into HCO3
? and H+.
e. CO2 binds to hemoglobin.
B
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Indicate whether the statement is true or false.
Some sensory receptors decrease their frequency of action potentials when exposed to a continued,
constant stimulus in a process known as: a. transduction. b. sensory adaptation. c. referred perception. d. reception. e. sensory summation
Characteristics of an ideal antimicrobial include that it
A) is broadly toxic. B) is microbicidal. C) is allergenic. D) leads to antimicrobial resistance.
Genotypic adaptive landscapes better represent true adaptive landscapes than pheno-typic adaptive landscapes because:
a. single mutations can have a large effect on the phenotype. b. phenotypic landscapes are hard to mathematically model. c. phenotypic landscapes do not account for drift. d. genotypic landscapes are easier to visualize. e. genotypic landscapes are smooth.