The parasympathetic tone
a) accelerates activity of the digestive tractb) causes blood pressure to risec) prevents unnecessary heart decelerationd) determines normal activity of the urinary tract

The correct option is D) determines normal activity of the urinary tract.

Explanation:

The peripheral nervous system controls involuntary functions and acts. The parasympathetic tone is known as a constant activity that maintains the parasympathetic nervous system, this allows that at any given time, the activity of this system can increase or decrease, that is, the value of the tone has implications in the increase or decrease in the activities of the stimulated organ, in its contraction or relaxation. Parasympathetic stimulation raises the tone of the detrusor muscle (causes it to contract) of the urinary bladder and relaxes the trigone and the urethral sphincters(which muscles help to keep the urethra closed, that is, help the urine staying in the bladder), favoring micturition.

good thing- during decomposition the organic molecules in organic matter are broken down into simpler organic molecules that require further decomposition or into mineralised nutrients

bad thing- it can be harmful in crop productivity

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