Classification Of Animals
Chapter Name : Animal Kingdom |
Sub Topic Code : 103_11_04_02_01 |
Topic Name : Classification Of Animals |
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Sub Topic Name : Phylum- Porifera |
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Introduction
Sponges are a very basic form of animals with cellular level of organization.
Pre-Requisites:
Levels of organization.
Activity:
Observe a bath sponge.Skeleton made up of spicules.
Real Life Question:
Is the bath sponge we use in our day to day life a living animal?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Ostia Spongocoel Osculum Hermaphrodite Spicules/ Spongin fibres Choanocytes/ collar cells | Minute pores in sponges through which water enters. Central body cavity of sponges. Pores through which water enters in sponges. Organisms in which both the sexes are in one body. Sexes are not separate. The skeleton of sponges is made up of sponging fibers. Cells that line the spongocoel and the water transport canals in sponges. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Go diving or exploring the ocean or to a lab and look for live sponges. | See the openings of the water transport system. |
Places to visit :
Biology Laboratory, ocean
Practical examples around us
| Examples | Explainations |
|---|---|
| Bath sponge is actually a living animal! |
What you learn in Theory:
About the different features of sponges.
What you learn in Practice:
The Spongin skeleton of sponges makes them useful in day to day life.