When stimulated by the TH2 pathway, into which type of cell do B cells differentiate?
a. TH2 cells
b. macrophages
c. plasma cells
d. eosinophils
c. plasma cells
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Microwaves do not kill organisms directly but kill by
A. the heat they generate in a product. B. generating free radicals. C. generating toxins. D. creating thymine dimers.
To account for variations in the evolutionary rates at different genetic loci, the ____ compares alternative trees
reflecting differentrates of evolutionary change tto identify the best evolutionary path
a. punctuated equilibrium hypothesis b. gradual phyletic hypothesis c. traditional systematic method d. principle of parsimony e. maximum likelihood method
Inflammation ____
a. is triggered by activated complement b. is a specific immune response c. results in redness due to decreased blood flow d. results in swelling due to the loss of water from damaged tissue e. is caused by fever
Describe where pollen grains are produced in a plant. Fill in the blank(s) with the appropriate word(s)