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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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
Which of the choices below is a type of hormone that acts on neighboring cells without entering the bloodstream?
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