Locomotory organs in $Taenia$ are called

The bladder worm / $Cysticercus$ is the larval stage of $..........$.

Endoparasites are found inside the host body. Mention the special structure possessed by these and which enables them to survive in those conditions.

Mehlis's glands of Tapeworm are associated with:

Give a scientific reason: Having a flat body is an advantage among flatworms.

Which of the following does not belong to phylum-Platyhelminthes?