Which of the following is a causative factor in the abnormal development of sexual organs??
A) ?An extra chromosome exists.
B) ?Sex chromosomes do not split apart when gametes are formed.
C) ?The genes for sexual development are missing.
B
You might also like to view...
C. both A and BWhich of the following are potential consequences of spinal fractures?
A. paralysis B. death C. both A and B D. none of the above
Of the four indirect motor spinal cord pathways that originate in the brainstem, the one whose upper motor neuron destination is the lateral funiculus is the
A. reticulospinal tact. B. vestibulospinal tract. C. tectospinal tract. D. rubrospinal tract. E. None of the choices is correct.
When applying a vest-type extrication device or short backboard to a seated patient, his or her head should be secured to the device:
A) after you apply a cervical collar. B) only after the torso is fastened securely. C) before you secure his or her torso. D) after he or she is moved to a long backboard.
The amount of melatonin secreted by the pineal gland is regulated by
A. the stress response. B. blood glucose levels. C. a person's individual metabolic rate. D. the amount of sleep a person gets. E. the photoperiod (the daily amount of daylight).