Classification Of Animals
Chapter Name : Animal Kingdom |
Sub Topic Code : 103_11_04_02_09 |
Topic Name : Classification Of Animals |
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Sub Topic Name : Phylum-Echinodermata |
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Introduction
Echinodermata are called so because of their spiny bodies.
Pre-Requisites:
Phylum Mollusca and their unique characters.
Activity:
Observe various live and dead specimens of echinodermata. Calcareous ossicles in various echinoderms have evolved for different purposes.
Real Life Question:
Do all fishes belong to Echinodermata?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Complete digestive system Calcareous ossicles | Digestive system with two openings, one for intake and one for outtake. Plates made of calcium carbonate that move together to form flexible joints. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Look at the various specimens of echinodermata in your biology lab. | Try to spot the calcareous ossicles and the two openings for the digestive system. |
Places to visit :
Biology Laboratory
Practical examples around us
| Examples | Explainations |
|---|---|
| Star fish is a common example of echinodermata. |
What you learn in Theory:
The various features of echinoderms, the main one being its spiny body.
What you learn in Practice:
Starfishes can sometimes be confused to belong to phylum Cnidaria with corals but they actually belong to phylum echinodermata.