What are all the characteristics of helminths?

HABITAT: Animal endoparasites that are present.

symmetry: both sides symmetric.

Level of Organization: Organ level.

SKELETON: Flattened dorsoventrally, also referred to as flatworms.

REPRODUCTION: Dipterans

Internal Fertilization

Development is indirect (formation of larvae).

Using Planaria as an example, consider the following: 1. Hooks and suckers are present in a parasitic form for support and absorption; some of them absorb nutrition directly to the body surface from the host; 2. Flame cells aid in osmoregulation*; these flame cells also aid in excretion; and 3. They are triploblastic.

Helminths are parasitic worms characterized by multicellular bodies, bilateral symmetry, and a complex life cycle involving hosts. They can be further classified into different groups based on their morphology and life cycle, including roundworms (nematodes) and flatworms (trematodes and cestodes). Helminths typically possess specialized structures for attachment and feeding, such as hooks, suckers, or mouthparts. They often exhibit reproductive adaptations, such as producing large numbers of eggs or larvae to ensure their survival and transmission to new hosts. Additionally, helminths can cause a variety of diseases in their hosts, ranging from mild discomfort to severe pathology.