Which of the following conditions would cause an increase in the heart rate?
A) activation of the parasympathetic nervous system
B) acetylcholine stimulation of nodal cells and contractile cells
C) activation of the sympathetic nervous system
D) decreased blood concentration of carbon dioxide and increased blood pressure
E) decreased blood concentration of oxygen and increased blood pressure
Ans: C) activation of the sympathetic nervous system
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Which of the following bones bear teeth?
A) mandible B) maxillae C) maxillae and mandible D) palatine bones E) lacrimal bones
The enzyme(s) called ________ break(s) down the substrate called ________.
A. nucleases; nucleotides B. peptidases; proteins C. lactose; lactase D. lipases; micelles E. lactase; glucose
Which term best describes the function of blood when considering the presence of carbon dioxide and endocrine hormones?
A. Prevention B. Regulation C. Protection D. Transportation