You don't, many people live with one kidney and you can donate a kidney if you want to.
All I know is that the body functions perfectly fine with just one kidney
2 kidneys are better than one, however, a person can live a normal life with just one kidney as well.
Two Is Better Than One was created in 2008.
Two Pianos Are Better Than One was created in 1994.
Two pies are better than one pie!
One is lonly, two has company.
Two blankets are better than one, because they provide more warmth, shelter, etc.
You can survive with one kidney because it can do the work of both! However, people living with one kidney have to be very cautious of their lifestyle choices as leading an unhealthy life would lead to kidney failure faster than a person with two kidneys.
Two cooks are better than one because you can then get more things done at one time. (But of course you would need space for that) :-)
no
there are two kidneys in the human body if one kidney is donated there is no effect on the normal functioning of the body
Yes. Because if one kidney is removed because of a disease, the other kidney can perform the work of two.
Yes. Because if one kidney is removed because of a disease, the other kidney can perform the work of two.
there are more than two, but the heart and the kidney can be implanted.