Saturday 25 February 2012

IMPORTANT DIAGRAMS FROM KINGDOM ANIMALIA- IX Diversity in living organisms (Updated on :25.02.12)

IMPORTANT DIAGRAMS FROM ANIMALIA KINGDOM :
(Earth worm, Cockroach, Birds and Bony Fish)

1. Earthworm :


Earth worm excrete out the extra material through the Anus.
It shows the burrowing adaptations.

2. Cockroach :

3. Bony Fish :

4. Birds :

Birds belong to Phylum Chordata, Sub Phylum Vertebrata and Class Aves.
Streamlined body to provide minimum resistance to air currents and helps in flying.
Forelimbs modified into wings and Feathers provide insulation to the body.
Hind limbs modified for walking, perching and swimming.
Pneumatic bones (hollow bones)  reduce the weight of the body and helps in flying.
Eyes covered with Nictitating membrane.
Lung shows air sacs attached to it.


SOURCE : SOUVENIR LAB SKILLS BOOK IX AND CD.
if any queries, please comment...

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