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Assertion Spongilla and Leucosolenia are...

Assertion Spongilla and Leucosolenia are structurally similar sponges
Reason In Spongilla and Leucosolenia, body is radially symmetrical.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

C

Assertion is true, but Reason is False

D

Both Assertion is false, but Reason are false

Text Solution

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The correct Answer is:
D
Spongilla and Leucosolenia both are organisms of phylum-Porifera. Spongilla beongs to Haplosclerina order of class-Demospongia and Leucosolenia beongs to Asconosa order of class-Calcarea. Spongilla is a freshwater sponge and asymmetrical , whereas Leucosolenia is a white or dull grey colour, cylinderical individual having radial symmetry.
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  2. Assertion : Sponges belong to Porifera Reason : Sponges have canal s...

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  3. Assertion Spongilla and Leucosolenia are structurally similar sponges ...

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  4. Assertion Sponges are less specialised ones. Reason Sponges show lea...

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  5. Assertion : Sponges do not show any animal nature. Reason : Sponges ...

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  7. Assertion The coelenteron of Hydra is called gastrovascular cavity. ...

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  9. Assertion : Coelenterates shown altermation of generation. Reason : ...

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  13. Assertion Paragonimus is known as lung fluke. Reason Lung fluke spe...

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