Prentice Hall 9-4 Worms: SmithLifeScience

Unit 2 Diversity of Life
Chapter 9 Sponges, Cnidarians, and Worms
Section 4 Worms

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9-4 Worms
Characteristics of Worms
Flatworms: Planarians, Tapeworms
Roundworms
Segmented Worms

Day 1

Topic 9-4 Worms

Objectives
Discuss the different kinds of worms and their features.
Identify the three cell layers in worms.
Name three examples of flatworms.
Name two examples of roundworms.

State Goals

Classwork-Homework

On the Board

Worm Types

Flatworms	platyhelminthes
Roundworms	nematodes
Segmented	annelids

On the Board

Worm Cell Layers

Ectoderm	outer tissue layer
Mesoderm	middle tissue layer
Endoderm	inner tissue layer

Unsegmented Worms Flatworms Gallery Tapeworms

Flatworm Chart

Flatworm Quiz

Globe Fearon 174-175

Prentice Hall 314-318

Lesson Review 9-3 What are flatworms & (roundworms)?

TEC

Prentice Hall 10-4 Worms pp.269-274

Resources

Introduction: Worm Interview
Paulette the Planarian, Tommi the Tapeworm, Larry the Leech, Eddie the Earthworm.

Day 2

Topic Worm Phyla

Objectives
List the characteristics of Flat, Round, and Segmented Worms

State Goals

Classwork-Homework
On the Board

Worm Phyla Characteristics

Flatworms	Roundworms	Segmented Worms
3 Cell Layers	3 Cell Layers	3 Cell Layers
No Coloem (Body Cavity)	Pseudocoloem	True Coloem
No Digestive System	Two-way Digestive System Head and Anus	Two way Digestive System Head and Anus
Asexual/ Sexual Reproduction	Separate Sexes	Hermathodic: Both Sexes
No nervous system	Brain & Nerve Cord	Brain & Nerve Cord
Open Circulatory	Open Circulatory	Closed Circulatory
Breathes through skin	Breathes through skin	Breathes through skin
Planaria Flukes Tapeworms	Hookworms Trichina Heartworm	Earthworm sandworm Leech

Worm Notes

Prentice Hall 319-320

Globe Fearon 176-177

Globe Fearon Lesson Review 9-4 What are segmented worms?

TEC

Resources

Planarian Regeneration Activity

Howard Hughes Medical Institute All kinds of resources, free dvds. Interesting site.

Day 3

Topic Worm Classes

Objectives
Discuss the different kinds of worms and their features.
Identify the three cell layers in worms.
Name three examples of flatworms.
Name two examples of roundworms.
Describe the features of segmented worms.
Draw and label a segmented worm.
Draw the Ventral (bottom) of the earthworm.
Read for information.

State Goals

Classwork-Homework
On the Board

Flatworms Classes

Turbellaria	planaria
Trematoda	flukes
Cestoda	tapeworms

LAB: Observing Flatworms and Roundworms
Teaching Resource 204-208

Use microscope

Flatworms	Roundworms
Planarian slide	Vinegar Eel slide
Pork Tapeworm slide	Trichina Worm slide
	Heartworm

TEC

Resources
Comparative Anatomy

Activities Art Investigations
Resources Web Sites

ANIMALS INVERTEBRATES

Animal Ethics and Marine Studies

Invertebrate Critter Cards Cnidarians, Annelids, Mollusks, Echinoderms, and Arthropods. Match pictures to Phylums.

DISSECTION

Earthworm Dissection Guide

Earthworm Digestion Animation

Earthworm Dissection Pictures Use these pictures and the printed dissection guide to become familiar with worm anatomy and learn some of the main concepts covered in the dissection.

EARTHWORMS

Earthworm Worksheet

Composting Classroom Activities 36 pages! Stations for worm observation.

Earthworm Anatomy External & Internal activity

Earthworm Investigation: Meeting an Earthworm, Identifying an Earthworm, National Earthworm Survey
Lesson Plan: Meeting an Earthworm, Identifying an Earthworm, National Worm Survey

Quart Jar Worm Farm Using a mason jar you can make a simple worm farm to see how worms move and mix soil.

Earthworm Anatomy External and internal anatomy.

Earthworm External View

Earthworm Facts Answers to questions about earthworms.

Earthworm Features

Segmented Worm Information

Earthworm Internal Anatomy

Earthworm Review: After Dissection The following images are designed to help you review materials you studied in the laboratory. These images can be most useful to you if you try to identify labeled structures before clicking to obtain answers.

The Adventures of Herman Read the autobiography of Squirmin' Herman the worm. Research: History, Family Tree, Anatomy, Come Live with Me, Worm Deli, Can't Live Without Me, Worm Facts, Fun Place, Worm Links.

FLATWORMS

Dugesia Microscope slide of the flatworm dugesia.

Platyhelminthes Phylum Members of the phylum Platyhelminthes (Greek platy = flat, and helmins = worms) are dorsoventrally flattened, which accounts for their common name, the flatworms.

Parasitic Flatworms

Tapeworms

Tapeworm Page

FLUKES

Life Cycle of Sheep Liver Fluke

Sheep Liver Fluke

Sheep Liver Fluke Picture

INVERTEBRATES

Marine Life Circle the Invertebrates Nice line drawings of sea urchin, jellyfish, sand dollar, crab, shrimp, sea star, clam, scallop, lobster, horseshoe crab, anemone, scallop, sea star, octopus

KEYS, GUIDES, and CHECKLISTS

Invertebrate Key

Key to Mature Earthworms

LANGUAGE ARTS

Animal Imagery Similes and metaphors

PARASITES

Animal and Human Parasite Images

PLANARIAN

Planarian Regeneration Activity 4 page pdf file. Nice picture of actual regeneration

Planarian Lab

Planaria: Classics of Biology You will never forget the flatworm once you have looked into its eyes. These apparently "cross eyed" animals live in weedy ponds, in slow moving streams, and in the smallest creeks.

ROUNDWORMS

Simple Worms- Microscopic Observations Neat activity!!!

Culturing Vinegar Eels

Intestinal Nematodes

Introduction to Nematoda: The Roundworms There are thousands of nematodes. Not only are there more than 15,000 known species of roundworms, but there are many thousands of individual nematodes in even a single handful of garden soil. And they keep coming! Some species of roundworm may contain more than 27 million eggs at one time and lay more than 200,000 of them in a single day.

Phyla: Nematoda and Rotifera

Tricinella Picture

SIMPLE WORMS

Simple Worms-Microscopic Observations Tapeworm, Schistosoma, Hookworms, Sheep Liver Fluke, Vinegar eels, Rotifers

WEB QUESTS

Case of the Changing Bering Sea Environment Introduction

Creatures of the Deep Investigate the animals and answer the questions.

WORMS

Worm Phyla Comparison

Creatures of the Thermal Vents The giant tube worm is one of the most conspicuous members of a diverse community that forms around hydrothermal vents. Scientists once thought that no living thing could survive the harsh combination of toxic chemicals, high temperatures, high pressures, and total darkness at these vents.

Worm Rap

Worm World The Yuckiest Site on the Internet