The _____ of an antibody molecule functions to recognize and bind to a specific antigen
a. antigen-antibody complex
b. antigen-binding site
c. light chain
d. heavy chain
e. immunoglobulin motif
b
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The brain perceives the pitch of a sound based on the
a. region of the cochlea sending the signal. b. number of action potentials sent by the neurons. c. speed of the action potentials sent by the neurons. d. size of the action potentials sent by the neurons. e. tension produced along the cochlear membrane.
The accompanying figure is of one of the most poisonous mushrooms. Four of the following statements about this fungus are true. Which is the exception?
a. Its spores are created by mitosis. b. It is called the death cap. c. It is often mistaken for a puffball. d. It kills by causing liver and kidney failure. e. It is a club fungus.
In the United States, what fraction of fresh
water taken from the environment is used to irrigate agricultural fields? a. 0. b. 20. c. 40. d. 60. e. 80
Compared to blood capillaries, lymphatic capillaries__________.
What will be an ideal response?