Describe what happens to NaCl when placed in water.
What will be an ideal response?
Water molecules break the ionic bonds holding Na+ and Cl- together. Each sodium ion becomes surrounded by polar water molecules, with the electronegative ends of water molecules interacting with the ion. Each chloride ion also becomes surrounded by polar water molecules, but in this case it is the electropositive ends of the water molecules that bind to the ion. A consequence is that sodium and chloride ions can function relatively
independently of each other when in solution.
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Which of the following is not a male secondary sex characteristic?
A. Thickening of the bones B. Increased muscular growth C. Deposition of adipose tissue in the thighs and buttock D. Increased growth of body hair
If a secondary oocyte is fertilized and successfully implants in the uterine lining,
A. the corpus albicans secretes gonadotropin-inhibiting hormone to prevent further follicular development. B. the uterine lining undergoes a proliferative phase. C. the ovarian cycle begins again. D. the corpus luteum is maintained until the placenta begins to secrete estrogen and progesterone. E. All of the choices are correct.
The geniculate ganglion:
A) contains the cell bodies of the motor fibers of the facial nerve. B) contains the cell bodies of the sensory fibers of the facial nerve. C) contains the synapses of the autonomic fibers of the facial nerve. D) is located in the brainstem. E) is located in the middle cranial fossa.
Increased thirst is stimulated by the initial fall in plasma/blood volume that occurs with hemorrhage
a. True b. False Indicate whether the statement is true or false