13. Urinary catheterization is done for which of the following objectives?
LA. To facilitate ultrasound of the abdomen
B. To perform contrast radiographic Studies
C for ease of Kidney biopsy Collection
D. For the treatment of systematic antibiotics

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stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms