The kidneys remove waste products from metabolism such as urea, uric acid, and creatinine by producing and secreting urine. Urine may also contain sulfate and phenol waste and excess sodium, potassium, and chloride ions.
Answer:
stem cell are special human cell that are used to develop the different cell like muscles cells , brain cell etc.
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<span>positive self talk is the best source of internal motivation.</span>
