The kidneys play a major role in the urinary system which of these is not a function of the kidneys

Explanation:

The kidneys are important organs with many functions in the body, including producing hormones, absorbing minerals, and filtering blood and producing urine. Antibiotics are the proteins which are released in response to an antigen. It is a prominent protein which is used for the defensive mechanism.

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transportation i would say maybe sorry it its not correct

these are common warning signs of overtraining syndrome:

washed-out feeling, tired, drained, lack of energy

mild leg soreness, general aches, and pains

pain in muscles and joints

sudden drop in performance

insomnia

headaches

decreased immunity (increased number of colds, and sore throats)

decrease in training capacity/intensity

moodiness and irritability

depression

loss of enthusiasm for the sport

decreased appetite

increased incidence of injuries.

a compulsive need to exercise