which structure of the excretory system mainl...
which structure of the excretory system mainly functions in filtration?\no ureter\no kidney\no urethra\no bladder
Answer
# Brief Explanations:
The kidneys are the main organs of the excretory system for filtration. They filter blood to remove waste and excess substances, forming urine. The ureter transports urine from the kidneys to the bladder, the urethra is the tube for urine - exit, and the bladder stores urine.
# Answer:
kidney