Exercise 8: Flat, Round and Segmented Worms

Question 1

Phylum of Flatworms?

Answer 1

Phylum Platyhelminthes

Question 2

Characteristics of Phylum Platyhelminthes?

Answer 2

TBASH

• Triploblastic
• Bilateral Symmetry
• Acoelomate
• Simple Organs & Organ System
• most Hermaphroditic

Question 3

Cell Types of Phylum Platyhelminthes?

Answer 3

EParG FCL

• Epidermis
• Parenchyma Tissue
• Gastrodermis
• Flame Cells (protonephridia)
• Circular & Longitudinal muscle layers

Question 4

Tapeworms with _____ for attachment; buds ______

Answer 4

scolex
proglottids

Question 4

Body Organization of Phylum Platyhelminthes?

Answer 4

• Flattened body
• Simple Organs & Organ System

Question 5

Fluke Life Cycle

Answer 5

EMSReCA

egg > miracidium > sporocyst > redia > cercaria > adult

Question 5

Tapeworm Life Cycle

Answer 5

ECA

egg > cysticercus (bladder worm) > adult

Question 6

Classifications of Phylum Platyhelminthes?

Answer 6

Class: Turbellaria
Class: Trematoda
Class: Monogenea
Class: Cestoda

Question 7

Class that is free living and mostly aquatic?

Give examples of this Class

Answer 7

• Class Turbellaria
• Dugesia and Bipalium

Question 8

Class that is parasitic liver and blood flukes?

Give example of this Class

Answer 8

Class Trematoda

Clonorchis

Question 9

Class that is mostly external parasite of fish?

Give example of this class

Answer 9

Class Monogenea

Protopolystoma

Question 10

Class of tapeworms?

Give example of this class

Answer 10

Class Cestoda

Taenia

Question 11

Phylum of Roundworms?

Answer 11

Phylum Nematoda

Question 12

Characteristics of Phylum Nematoda

Answer 12

FTCE

• Free living and parasitic worms
• Triploblastic
• Complete digestive tract with mouth and anus
• Exhibits eutely

Question 13

Cell Types of Phylum Nematoda

Answer 13

ETN

• Epidermis (= hypodermis)
• Three true tissue layers
• No muscle tissue associated with intestine gastrodermal cells line intestine

Question 14

The intestinal roundworms?

Answer 14

Ascaris

Question 15

Scientific name of earthworms?

Answer 15

Lumbricus terrestris

Question 16

Scientific name of roundworms?

Answer 16

Ascaris lumbricoides

Question 17

Phylum of Segmented Worms?

Answer 17

Phylum Annelida

Question 18

Characteristics of Phylum Annelida

Answer 18

CCMM

• Cylindrical elongated segmented bodies; segments divided by septa
• Closed circulatory system
• More efficient excretory system with typhsole
• Marine members with trochophore larva

Question 19

Classification of phylum Annelida

Answer 19

• Class Polychaeta
• Class Hirudinea
• Class Oligochaeta

Question 20

Class of earthworms?

Answer 20

Class Oligochaeta

Question 21

Class of leeches?

Answer 21

Class Hirudinea

Question 22

Class of marine worms?

Answer 22

Class Polychaeta