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Presentation zoology BIOLOGY Simplified NCERT Class XII

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In this document you can revise notes and important points based on ncert text pdf will help you to clear all your doubts and learn only the important points not the unnecessary ones.

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PRACTICALS FOR CLASS XI

EXPERIMENT NUMBER 1

IDENTIFICATION OF INVERTEBRATE ANIMALS

,IDENTIFYING CHARACTERS:
• Radially symmetrical, cylindrical
• Presence of gastrovascular cavity
• Presence of tentacles around mouth

ADAPTATIONS:
• Presence of tentacles around mouth
• Presence of gastro vascular cavity

,HYDRA



Kingdom: Animalia
Phylum: Coelenterata
Class: Hydrozoa

, IDENTIFYING CHARACTERS:
• Dorsoventrally flattened body
• Acoelomate and bilaterally symmetrical
• Presence of suckers

PARASITIC ADAPTATIONS:
• Body is covered with cuticle
• Presence of oral sucker and lateral sucker(Acetabulum)
• Anaerobic respiration
• Absence of digestive system

ECONOMIC IMPORTANCE:
• Damage liver and cause liver rot disease
Connected book
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Dr. Dileep Gangwar BIOLOGY Simplified NCERT Class XII
Publisher: 2018 ISBN: 9789313160984 Edition: Unknown

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