Molecules with the same ratio of atoms, but different arrangements of atoms, are known as ________.
A. radioactive isotopes
B. structural isomers
C. stereoisomers
D. isotopes
Answer: B
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Breathing faster and deeper eliminates more carbon dioxide from the body than normal breathing. Under these circumstances,
A) more carbon dioxide will diffuse out of the blood in the lungs. B) more carbon dioxide will diffuse into the blood in the lungs. C) less carbon dioxide will diffuse out of the blood in the lungs. D) less carbon dioxide will diffuse into the blood in the lungs. E) the amount of carbon dioxide diffusion will remain unchanged.
Explain what dual innervation means with regard to the autonomic nervous system. Using the cardiovascular, respiratory and digestive systems as examples, explain how dual innervation regulates the function of each system
What results from right ventricular failure?
A. Pulmonary congestion B. Compression of the heart by serous fluid or blood in the pericardial cavity C. Mitral valve prolapse D. Systemic congestion E. Inflammation of the endocardium
All the following compensate for a fall in blood pressure below normal except
a. increased cardiac output b. decreased total peripheral resistance c. increased heart rate d. venous vasoconstriction e. increased stroke volume