Which of the following is a foreign substance that produces an immune response?
A) an abzyme
B) an antibody
C) an antigen
D) none of these
C
You might also like to view...
Why is metal shiny?
A. The electrons absorb each light wave. B. The electrons emit light due to electronic excitation. C. The loose electrons reflect most wavelengths of light. D. The electrons transmit most wavelengths of light. E. all of the above
Which of the following determines the earth's temperature?
A. Energy output of the sun B. Distance from the sun C. Carbon dioxide in Earth's atmosphere D. All options are correct.
Which of the following correctly gives the order of boiling points for the molecules propane, dimethyl ether, and ethanol?
A) ethanol > dimethyl ether > propane B) ethanol > propane > dimethyl ether C) propane > dimethyl ether > ethanol D) propane > ethanol > dimethyl ether
Which of the following describes the effect of raising the temperature of an endothermic reaction which has not yet reached equilibrium?
A) The rate of reaction slows and less product is produced. B) The rate of reaction slows, but more product is produced. C) The rate of reaction speeds up, but less product is produced. D) The rate of reaction speeds up and more product is produced.