In turbellarian nervous systems, neurons carrying information to the brain are __________ neurons.

Among those turbellarians possessing a digestive cavity, digestion is

Tapeworms lack

Which of the functions listed below is NOT a function of the parenchyma of the platyhelminthes?

Which one or more of the following statements accurately reflects our understanding of platyhelminth phylogeny? Select all that apply.

The free-swimming larval stage of some turbellarians is called a/an

Class Trematoda Is most commonly referred to as

Annulus refers to

Planarians typically do not self-fertilize because

The free-living flatworms are classified in the class