Biology: Excretory System: vocabulary help? please?

Nikki Nuk

New member
1) what is the scientific name for urination?
2) waste product of many body processes, which contains one part nitrogen to two parts hydrogen. It is produced when bacteria breaks down urea
3)ring of muscles at the opening of the bladder
 
(1) micturition is another term for urination or disposing of urine from the urinary bladder.
(2) Ammonia
(3) sphincter muscle
 
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