Excretion in Paramecium sp is by diffusion beca... - WAEC Biology 2010 Question
Excretion in Paramecium sp. is by diffusion because
A
its habitat is water and moist places
B
it has simple, small and few internal organs
C
it has a large surface area to volume ratio.
D
it has a large efficient meganucleus.
correct option: c
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