Question

What is meant by excretion? Explain the process of formation of urine ? ​

Answer 1

Answer:

the releasing of waste materials from a body is called excretion.The urine is comes from the penis.

Answer 2

Answer:

the excretory system in humans consists of a pair kidneys., a pair of ureters, a urinary bladder, a urethra and a urinary opening ureter are a pair of muscular and tublar structures which conducts urine from the kidneys to the urinary bladder the first nitrogenous waste to be formed from the breakdown of protein is ammonia, a highly toxic chemical it is equally converted by the kidneys to urea which is less toxic than ammonia urea is excreted from our body in the form of a plae yellowish colour fluid called urine