One example of animals having a single opening to the outside that serves both as mouth as well as anus is

What do Platyhelminthes exhibit in contrast to Annelids?

For completing its life cycle, Tapeworm requires/ Intermediate host of Tapeworm is

“Triploblastic,unsegmented,acoelomate exhibiting bilateral symmetry and reproducing both asexually and sexually with parasitic forms.” The above description is characteristic of which phylum?

The first animal phylum to exhibit a triploblastic body organization is .........

One example of animals having a single opening to the outside that serves both as mouth as well as anus is