Question
Biology Question on Classification Of Animals
Which of the following does not have any alimentary canal?
A
Ascaris
B
Taenia
C
Frog
D
Earthworm
Answer
Taenia
Explanation
Solution
The alimentary canal is absent in Taenia solium. So its mode of nutrition is saprozoic, i.e, it absorbs digested liquid food from the intestine of the host through its general body surface. In fact, the digested nutrients like glucose, amino acids, glycerol etc, from the host?s intestine which diffuse directly through its body surface.