Allergy testing, which is accomplished by injecting tiny amounts of allergen into the skin and examining the injection site for a reaction, is an example of an in vitro test.
a. true
b. false
b. false
You might also like to view...
A fungi is best described as a ________
a. seed producing autotroph with cell walls of chitin b. seed producing heterotroph with cell walls of cellulose c. spore producing heterotroph with cell walls of chitin d. spore producing autotroph with cell walls of chitin e. spore producing heterotroph with cell walls of cellulose
What would be the result of an overall decrease in the quantity of hemoglobin in the blood?
a. decrease in oxygen transportation, no change in carbon dioxide transportation b. decrease in oxygen transportation, increase in carbon dioxide transportation c. decrease in both oxygen and carbon dioxide transportation d. increase in blood plasma dissolution of both oxygen and carbon dioxide
The response represented by the dashed line in the accompanying figure indicates a:
a. secondary response to the initial antigen. b. primary response to the initial antigen. c. secondary response to an antigen distinctly different from the initial antigen. d. primary response to an antigen distinctly different from the initial antigen. e. secondary response equivalent to a primary response
Which statements about gradualism and punctuated equilibrium are true? Check all that apply.A) Darwin's publication On the Origin of Species changed the view of evolution from gradualism to that of punctuated equilibrium.B) According to the theory of punctuated equilibrium, evolutionary change occurs only during brief periods of speciation.C) Stasis is likely caused by periods of disruptive and directional selection.D) Gradualism suggests that evolutionary change is not linked to speciation.
What will be an ideal response?