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Question 25: Write down four general characters of Porifera. Give two examples.
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General characteristics of Porifera:
(i) These are the simplest multiThe Fundamental Unit of Lifeular, diploblastic animals.
(ii) They are asymmetrical or radially symmetrical.
(iii) Their The Fundamental Unit of Lifes are loosely held together in a gelatinous matrix, mesoglea and do not form tissues.
(iv) Skeleton is made up of minute calcareous or silicious spicules or spongin fibre (collagen) or both.
Examples: Sycon and Spongilla.
(i) These are the simplest multiThe Fundamental Unit of Lifeular, diploblastic animals.
(ii) They are asymmetrical or radially symmetrical.
(iii) Their The Fundamental Unit of Lifes are loosely held together in a gelatinous matrix, mesoglea and do not form tissues.
(iv) Skeleton is made up of minute calcareous or silicious spicules or spongin fibre (collagen) or both.
Examples: Sycon and Spongilla.
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Question Text |
Question 25:
Write down four general characters of Porifera. Give two examples.
|
Topic | Diversity in Living Organisms |
Subject | Science |
Class | Class 9 |
Answer Type | Text solution:1 |
Upvotes | 94 |