★ Excretion in Humans Quiz
Filtration of excretory wastes from the blood occurs in
A. ureters
B. collecting tubule
C. nephrons
Select your answer:

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Excretion in Humans › ViewUrine is released and flows into the bladder through the ________.
A. ureter
B. urethra
Mechanical Digestion › View
These teeth are big and strong to help you grind food so it can be swallowed.
A. wisdom teeth
B. canines teeth
C. molars teeth
D. premolar