Question 1 Define the term excretion? Question 2 Where are two kidneys located in human being? Question 3 What is transpiration? Question 4 Name the excretory unit of kidney? Question 5 Where is urine carried through ureters? Question 6 what are the vital functions of kidneys? Question 7 What is the function of blood capillaries surrounding the … [Read more...] about Excretion