O-LevelBiologyTransport in Humans5090/11 · May/June 2010 · Q191 Mark
Which cannot be an example of excretion?
ACarbon dioxide is breathed out from the lungs.
BUndigested food leaves the body through the anus.
CUrea leaves the body in urine.
DWater is removed through the kidneys.
✓ Correct answer
B: Undigested food leaves the body through the anus.
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