The variable domain of antibody molecules
A. interacts with the first component of the complement system.
B. interacts with various cells of the immune system.
C. interacts with phagocytic cells.
D. binds target antigen.
Answer: D
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The fertility drug clomiphene causes a woman to
A) produce more oocytes. B) ovulate more than one oocyte a month. C) ovulate more than one time a month. D) have only one menstrual period a year.
Planktonic foraminifera often have smaller photosynthetic protists such as diatoms or algae ____
a. living inside them b. living on their shell c. living near them on the ocean floor d. aiding in the building of their shell e. providing carbon dioxide for them
How does primary growth occur at a terminal bud?
What will be an ideal response?
The right and left cerebral hemisphere are divisions of the ____
a. thalamus b. hypothalamus c. cerebrum d. brain stem e. cerebellum