Nematodes

Question

Nematodes
A)possess flame cells.
B)possess an incomplete digestive tract.
C)are dioecious.
D)have external cilia.

Accepted Answer

Nematodes, or roundworms, are generally dioecious, meaning they have distinct male and female individuals, unlike some other invertebrates that might be hermaphroditic. They do not possess flame cells (a feature of platyhelminthes for excretion), they have a complete digestive tract (mouth to anus), and they do not have external cilia.