Core body temperature is about ____
a. 37°C
b. 98.6°C
c. 37°F
d. 75°F
e. 41°C
ANSWER: a
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Refer to Figure 46-1. The structures receiving air in figure 1 are known as:
a. anterior air sacs. b. parabronchi. c. spiracles. d. alveoli. e. tracheae.
Certain cancer cells have ABC transport molecules at the cell surface. These transporters use energy from ATP to move chemotherapeutic agents out of the cell. Which of the following do you think these transporters are most closely related to?
a. conjugation pilus b. membrane pumps c. altered porins d. beta-lactamase
In a compound microscope, the lens that directs light into the eye is the (ocular/condenser/objective) lens.
Fill in the blank(s) with the appropriate word(s).
Which of the following occurs in vascular land plants but not charophytes (stoneworts)?
A) sporopollenin B) lignin C) chlorophyll a D) cellulose E) chlorophyll b