Flatworms and Related Phyla

Vocabulary flashcards based on lecture notes about flatworms and related phyla.

Platyhelminthes

The phylum that includes flatworms.

Turbellarian

A class of flatworms that are free-living and non-parasitic.

Trematoda

A class of flatworms known as flukes, which are typically parasitic.

Cestoda

A class of flatworms that includes tapeworms, which are parasitic.

Planaria

A example of flatworms in the class Turbellarian, known for being free-living.

Cephalization

The evolutionary development of a head with a concentration of nerve tissues.

Hermaphrodite

An organism that has both male and female reproductive organs.

Suckers

Specialized structures used by Trematoda to attach to hosts.

Metacercaria

The encysted stage of flukes that occurs in the muscles of fish.

Scolex

The head region of a tapeworm, equipped with hooks and suckers.

Proglottid

The segments of a tapeworm, containing reproductive structures.

Filaria

A type of parasitic roundworm known to cause diseases like elephantiasis.

Trichinosis

A disease caused by the ingestion of larvae of Trichinella spiralis from improperly cooked meat.

Annelida

The phylum that includes segmented worms, such as earthworms and leeches.

Oligochaeta

A class within Annelida that includes earthworms.

planeria are what in shape

bilateral

planeria move away from light

cross eyed spots

planeria have

brain, definite organs, digstive system (mouth and anus)

how do planeria reproduce sexualy

cross fertilization

planeria can aslo produce asexually by

cutting in half

planaria have a triboplastic and what is this

a 3 layer of cells and the middle is known as the mesoderm

Tremotoda also known as

flukes

example of a trematoda

Chineese liver fluke

nematoda

a phylum of roundworms, they include hookworm, fillaria, and trichenlla

charecteristics of nematoda

parasitic and billateral

Nematoda have how many body openings

2 in mouth and anus

are nemotoda hemophroites or not

hemophrodites

charecteristics of annelida

billateral in shape 100-175 somites/segments long, tripoblatic, no head.