hamadehassan
06.11.2019 •
Biology
From which of the following structures does a flatworm expel solid waste?
cloaca
vesicle
pores in skin
mouth
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Ответ:
Flatworms only have one digestive opening, meaning that their mouth also serves as their anus - there is a single opening through which they eat and expel unnecessary materials.
Flatworms don't have a cloaca and vescile, and pores are too tiny to expel solid waste through them.
Ответ:
I guess you're answer would be
A. Primary☃️ Hope this helps ☃️