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What are the special features of coelenterates
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What are the special features of coelenterates Related: Chapter 7 Di...
1 Diploblastic animals with tissue level organisation in the body.
2 The body is radially symmetrical.
3 The body bears tentacles supplied with special stinging cells called cnidoblasts.
4 There is a cavity in the body.
5 Body is made of two layers of cells.
6 Simple gonads without gonoducts are present.
7 Reproduction is usually asexual (budding) in polyp form and sexual in medusae form.
8 They show polymorphism.
Examples: Hydra, Obelia and jelly fish.
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What are the special features of coelenterates Related: Chapter 7 Di...
These are radially symmetrical and diploblastic .
They show more body design differentiation.
There is cavity in the body for digestion called gastro vascular cavity or coelenteron.
Digestion is both intracellular and extracellular.
Circulatory system is absent.
Many forms exhibit polymorphism i.e. Polyp and medusa
Polyps are sessile, asexual stage
Medusa are free swimming, sexual stage
Some of these species live in colonies(corals),while others have a solitary like-span (Hydra)......
They show more body design differentiation.
There is cavity in the body for digestion called gastro vascular cavity or coelenteron.
Digestion is both intracellular and extracellular.
Circulatory system is absent.
Many forms exhibit polymorphism i.e. Polyp and medusa
Polyps are sessile, asexual stage
Medusa are free swimming, sexual stage
Some of these species live in colonies(corals),while others have a solitary like-span (Hydra)......
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What are the special features of coelenterates Related: Chapter 7 Diversity In Living Organisms
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What are the special features of coelenterates Related: Chapter 7 Diversity In Living Organisms for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about What are the special features of coelenterates Related: Chapter 7 Diversity In Living Organisms covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the special features of coelenterates Related: Chapter 7 Diversity In Living Organisms.
What are the special features of coelenterates Related: Chapter 7 Diversity In Living Organisms for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about What are the special features of coelenterates Related: Chapter 7 Diversity In Living Organisms covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the special features of coelenterates Related: Chapter 7 Diversity In Living Organisms.
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