Classification Of Animals
Chapter Name : Animal Kingdom |
Sub Topic Code : 103_11_04_02_04 |
Topic Name : Classification Of Animals |
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Sub Topic Name : Phylum-Platyhelminthes |
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Introduction
Platyhelminthes are a phylum of animals generally known as fatworms due to their dorso-ventrally flattened bodies.
Pre-Requisites:
What are ctenophores, what are their special features?
Activity:
Observe a specimen of flatworm in the lab. See the dorso-ventrally flattened body.
Real Life Question:
With such a flat body, do organs exist?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Flame cells Endoparasite | Specialized cells in flatworms that help in osmoregulation and excretion. A parasitic organism that lives inside another animal’s (host’s) body. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Observe the cross-section of a flatworm under a microscope. | Spot the various organs in their body. |
Places to visit :
Biology Laboratory
Practical examples around us
| Examples | Explainations |
|---|---|
| Tapeworms that attack the digestive tract of human beings are examples of endoparastic flatworms. |
What you learn in Theory:
The various features of flatworms like their flat bodies, presence of hooks & suckers and flame cells. Also we learn that flatworms have organ level of organization.
What you learn in Practice:
We learn about the various endo-parasitic flatworms like tapeworms that attack humans.