If more calories are ingested in food than are expended by metabolism
A. a person will gain weight.
B. a person will lose weight.
C. whether weight is gained or lost depends upon whether the calories are in the form of proteins, carbohydrates, or fat.
D. a person will stay the same weight because the excess energy is destroyed.
Answer: A
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The lower respiratory tract includes
A) only the lungs. B) all of the bronchial branches. C) all of the bronchial branches, the lungs, and the trachea. D) only the trachea. E) all of the bronchial branches and the lungs
When the solute concentration outside a red blood cell equals the solute concentration inside the cell, the solution is called ____
a. hypotonic b. osmotic c. hypertonic d. isotonic
Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system?
A. Preganglionic neurons tend to be long, with the ganglion located in or near the effector target tissue(s). B. Preganglionic neurons are short and synapse in ganglia located near the spinal cord. C. Preganglionic neurons release acetylcholine at synapses with postganglionic neurons. D. Postganglionic neurons release norepinephrine at their neuroeffector junctions. E. Postganglionic neuron cell bodies are located in the collateral chain ganglia (sympathetic trunk).
Which of the following muscles contract to start normal expiration?
A. Diaphragm B. External intercostals C. No muscles contract. D. Internal intercostals