Molecules that regulate defense responses via signal transduction pathways are called ____
a. complement proteins
b. histamines
c. macrophages
d. cytokines
e. defensins
ANSWER: d
Biology & Microbiology
You might also like to view...
Which group of bacteria would you expect to find in a shallow clear hot spring with high concentrations of geochemically produced hydrogen sulfide?
A) purple sulfur bacteria. B) single-celled Cyanobacteria. C) dissimulative sulfate-reducing bacteria. D) symbiotic diazotrophs.
Biology & Microbiology
The molecule of heredity is usually
A) RNA. B) DNA. C) protein. D) carbohydrate. E) None of the choices is correct.
Biology & Microbiology
What is another name for a nonenveloped virus?
A) enveloped virus B) provirus C) naked virus D) latent virus
Biology & Microbiology
During alcoholic fermentation, ____________________ is converted into ethanol.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology