The first phylum to have a complete alimentary canal is |
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a) |
Platyhelminthes |
b) |
Ascaris |
c) |
Aschelminthes |
d) |
Annelida |
The first phylum to have a complete alimentary canal is |
|||||||
a) |
Platyhelminthes |
b) |
Ascaris |
c) |
Aschelminthes |
d) |
Annelida |
(c)
Phylum-Platyhelminthes have an incomplete alimentary canal, but the alimentary canal is complete in phylum-Aschelminthes with a mouth and anus. This is the first phylum with a complete alimentary canal