Assertion : Sponges do not show any animal nature. Reason : Sponges are sessile with no apparent way of capturing food or eliminating waterA. Both Assertion and Reason are true and Reason is the correct explanation of AssertionB. Both Assertion and Reason are true but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is FalseD. Assertion is false, but Reason is true.

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

1.	Assertion : Sponges do not show any animal nature. Reason : Sponges are sessile with no apparent way of capturing food or eliminating waterA. Both Assertion and Reason are true and Reason is the correct explanation of AssertionB. Both Assertion and Reason are true but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is FalseD. Assertion is false, but Reason is true.
Answer» Correct Answer - D Robert Grant was the first to recognise and prove the true animal nature of sponges. The animal nature of sponges was well establised on the following facts Their mode of nutrition is truly holozoic. They are devoid of cell walls (characteristic feature of plants). Life cycle includes free swimming , cliated larval stages resembling those of other animals. Sponges are sessile and digestion is very simple without any apparent way of capturing food or climinating wastes .

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