The secretions of exocrine glands
A. directly enter the circulatory system.
B. are stimulated by nerve cells.
C. are always emptied onto the body surface.
D. are rarely under hormonal control.
B. are stimulated by nerve cells.
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Endotoxic shock, resulting from the release of endotoxin by bacteria infecting a patient, is only caused by Gram-negative bacteria.
Answer the following statement true (T) or false (F)
Lianas and epiphytes are especially common in the:a
tropical rain forest. b. savanna. c. temperate grassland. d. chaparral. e. taiga.
Natural Experiments
What will be an ideal response?
The conversion of a diamond into graphite is a spontaneous reaction. Why are most women walking around with
diamond rings and not graphite rings?
a. inorganic substances, like diamonds, do not react like organic substances b. the transition state is very stable c. the energy of activation is very high d. the free energy of this reaction is too low e. the free energy of this reaction is too high