Metabolic rate is the total amount of
A. glucose absorbed by the small intestine each hour.
B. carbon dioxide exhaled per unit of time.
C. kilocalories consumed.
D. energy produced and used by the body per unit of time.
E. heat produced by body cells in an hour.
Answer: D
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1. Local hormone 2. Paracrine 3. Autocrine 4. Circulating hormone a) 1 only b) 2 only c) 3 only d) 4 only e) Both 1 and 2
A fluid secreted into the small intestine during digestion that contains cholesterol, emulsification agents, and phospholipids is ________.
A) bile B) pancreatic juice C) intestinal juice D) gastric juice
This area is known as the pacemaker of the heart.
A. AV node B. SA node C. Bundle of His D. Purkinje fibers
The ________ nervous system is composed of the brain and spinal cord
A) autonomic B) peripheral C) central D) efferent E) afferent