How is urea made in the human body by the excretory organs

The liver breaks down many substances in the blood, including toxins. For example, the liver transforms ammonia, a poisonous by-product of protein catabolism into urea, which is filtered from the blood by the kidneys and excreted in urine. ... The liver and large intestine are two of the major organs of excretion.

Explanation:

I hope this helps

enzyme speed up the reactions

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells