What are the characteristics of class Cestoda?

Cestodes are long, flat, ribbon-like organisms commonly called tapeworms. The head, or scolex, has one or more hooked suckers for firm attachment to the host. Behind the head is the neck which is the growing region. The body consists of segments, each containing reproductive organs.

Which of the following are characteristics of cestodes?

They have a tape-like and segmented body. These animals are hermaphroditic, lack a digestive tract, and do not have a body cavity. They have a head with suckers (sometimes hooks as well) and generally have a 2-host life-cycle. The life cycle of cestodes goes something like this.

What are the two classes of Cestoda?

The adult tapeworm has a scolex (head), a short neck, and a strobila (segmented body) formed of proglottids. Tapeworms anchor themselves to the inside of the intestine of their host using their scolex, which typically has hooks, suckers, or both….Cestoda.

Cestoda Temporal range:
Class: Cestoda
Subclasses
Cestodaria Eucestoda

What is the function of rostellum?

Function. The rostellum is an organ of attachment of tapeworms, in addition to the surrounding suckers, to the intestinal wall of the host. It is protruded during attachment, and by the use of hooks penetrates the intestinal mucosa.

What is the meaning of cestodes?

Cestode definition Any of a class (Cestoda) of parasitic flatworms, with a ribbonlike body and no intestinal canal; tapeworm. noun. Of such a worm. adjective. Any of various parasitic flatworms of the class Cestoda, having a long flat body that usually has a specialized organ of attachment at one end (the scolex).

How many species are in the Cestoda class?

tapeworm, also called cestode, any member of the invertebrate class Cestoda (phylum Platyhelminthes), a group of parasitic flatworms containing about 5,000 species.

Which one is a example of class Cestoda?

Species of the class Cestoda are also commonly called as tapeworms or cestodes. All known species of this class are parasites. Their life cycle typically involves parasitizing a definitive host (often, the gut) during adulthood and infecting an intermediate host (e.g. muscle tissues) during the juvenile phase.

What are the 4 classes of Platyhelminthes?

The phylum consists of four classes: Trematoda (flukes), Cestoda (tapeworms), Turbellaria (planarians), and Monogenea.

What are the rostellum and Acetabula used for?

The rostellum is an organ of attachment of tapeworms, in addition to the surrounding suckers, to the intestinal wall of the host. It is protruded during attachment, and by the use of hooks penetrates the intestinal mucosa.

What is the definition of scolex?

Definition of scolex : the head of a tapeworm either in the larva or adult stage.